Original vs Clock

Original Series

Episode	Original Aliens Used	Clock's Aliens Used
And Then There Were 10	Heatblast, Wildmutt, Diamondhead, XLR8	Ghostfreak, Four Arms (selected alien was Ghostfreak)
Washington B.C.	Heatblast, Grey Matter, Four Arms, Stinkfly	Four Arms, Stinkfly, XLR8
The Krakken	Four Arms, XLR8 (selected alien was Ripjaws), Stinkfly, Ripjaws	Ghostfreak, XLR8, Diamondhead, Ripjaws
Hunted	Diamondhead (2x), Ghostfreak, Grey Matter	Heatblast, Upgrade, Diamondhead
Kevin 11	Ben: Ghostfreak, XLR8, Stinkfly, Heatblast (selected alien was Four Arms), Four Arms (selected alien was Stinkfly) Kevin: Heatblast, Four Arms	Clock: Wildmutt, Diamondhead (selected alien was XLR8), XLR8 (selected alien was Stinkfly or Ghostfreak) Kevin: Diamondhead, XLR8
Secrets	Diamondhead (3x, first time dream), Upgrade (2x), Heatblast (2x), Stinkfly, XLR8 (2x), Wildmutt (2x), Four Arms, Grey Matter, Ghostfreak (2x), Ripjaws	Stinkfly (2x, first time dream), Ghostfreak (2x), Wildmutt (2x), Diamondhead, Ripjaws (2x), Upgrade, Heatblast (2x), Four Arms (2x), Grey Matter, XLR8, Cannonbolt
Framed	Ben: Diamondhead, Wildmutt (selected alien was Upgrade), Four Arms Kevin: Four Arms, Heatblast (2x), Stinkfly (3x), Upgrade, Diamondhead Other: Stinkfly, Diamondhead, Upgrade, Ripjaws (news article)	Clock: Cannonbolt, Four Arms, XLR8 Kevin: Four Arms (3x), Wildmutt, Stinkfly (2x), Diamondhead (2x), Ghostfreak, XLR8 (2x), Upgrade, Ripjaws, Heatblast Other: Ripjaws, Four Arms, XLR8
Camp Fear	Cannonbolt (selected alien was Stinkfly), Wildmutt, XLR8, Wildvine, Stinkfly	Wildmutt (2x), Heatblast, Wildvine (selected alien was Ghostfreak), Four Arms
Ghostfreaked Out	Ben: Ghostfreak (selected alien was Heatblast), Four Arms, Grey Matter Dream: Wildmutt	Clock: Ghostfreak (selected alien was Upgrade), Cannonbolt (selected alien was Upgrade), Grey Matter, Heatblast Dream: Stinkfly
Grudge Match	Diamondhead, Four Arms, Grey Matter, Upgrade, Cannonbolt	XLR8, Wildmutt (selected alien was Four Arms), Grey Matter, Upgrade
Dr. Animo & The Mutant Ray	Ben: Stink Arms, Diamond Matter, Heat Jaws Bat: Heatblast Worms, Crab, Max: Stinkfly	Clock: Diamondblast (selected alien was Diamondhead), Mutt Arms, Stinkgrade Bat: Wildvine Worms, Crab, Grandpa: Wildmutt
Back with a Vengenace	Upgrade, Grey Matter (8x), Diamondhead (4x), XLR8 (6x), Heatblast (5x), Wildvine (3x), Wildmutt (4x), Ripjaws, Stinkfly (6x), Four Arms (3x), Cannonbolt (2x)	Wildvine, XLR8 (5x), Grey Matter (2x), Stinkfly (2x), Heatblast (3x), Four Arms (2x), Diamondhead (2x), Cannonbolt
Clock 10,000	Ben 10: XLR8, Stinkfly (selected alien was Four Arms), Upgrade (selected alien was Four Arms), Cannonbolt, Diamondhead Ben 10,000: XLR8 (3x), Four Arms (3x), Spitter (2x), Diamondhead (2x), Buzzshock, Cannonbolt, Wildmutt, Heatblast, Stinkfly, Arctiguana	Connor 10: Four Arms, Wildvine (selected alien was Diamondhead), Heatblast, Cannonbolt, XLR8, Diamondhead Connor 10,000: XLR8 (2x), Humungousaur, Spitter (2x), Shocksquatch, Goop, Armodrillo, Four Arms, Upchuck, Brainstorm, Gutrot, Buzzshock, Arctiguana
Benwolf Clockwolf	Wildvine (selected alien was Stinkfly), Blitzwulf, Cannonbolt	Wildmutt, Blitzwulf (2x)
Under Wraps	Four Arms, XLR8 (2x), Wildvine, Wildmutt, Diamondhead (2x), Upgrade (selected alien was Snare-Oh)	Four Arms, XLR8, Wildvine, Blitzwulf, Wildmutt, Cannonbolt, Heatblast, Snare-Oh
The Return	Stinkfly (selected alien was Four Arms), Snare-Oh (selected alien was Heatblast), Cannonbolt (selected alien was Four Arms), XLR8	XLR8, Upgrade (selected alien was Diamondhead), Heatblast, Diamondhead
Be Afraid of the Dark	Grey Matter (selected alien was Heatblast), Upgrade, Frankenstrike, Cannonbolt	Grey Matter (selected alien was Heatblast), Upgrade, Frankenstrike, Diamondhead
The Visitor	Wildmutt, Heatblast, Wildvine, Diamondhead, Four Arms, Upchuck	Frankenstrike, Four Arms, Upchuck
Divided We Stand	Ripjaws, Ditto (3x, first time selected alien was Stinkfly), Upgrade (selected alien was Ditto)	Stinkfly, Ripjaws, Ditto (3x, first time selected alien was Diamondhead), Wildvine
Secret of the Omnitrix	Heatblast/Eye Guy/XLR8, Stinkfly, Wildmutt (2x, selected alien was XLR8), Diamondhead, Grey Matter (selected alien was Stinkfly), Upchuck, Four Arms, Cannonbolt, Way Big	Eye Guy, XLR8 (2x), Ripjaws, Snare-Oh, Ditto, Grey Matter, Ghostfreak, Cannonbolt, Way Big
Hippocra-10	Ben 10,000: Four Arms (4x), XLR8 (4x), Cannonbolt (2x), Heatblast, Diamondhead (2x), Spitter, Arctiguana, Snare-Oh, Way Big Ken 10: XLR8, Buzzshock (2x), Wildvine, Grey Matter (2x), Ditto, Spitter	Clock 10,000: XLR8 (3x), Jetray, Brainstorm, Heatblast, Diamondhead (2x), Spitter, Arctiguana, Humungousaur (2x), Overflow, Snare-Oh, Four Arms, Cannonbolt, Frankenstrike, Rath, Way Big, Atomix, [REDACTED] Hippocra-10: Buzzshock (2x), Shellhead (2x), Grey Matter, Toepick (2x), XLR8, Ditto, Wildvine, Spitter

Alien Force

Episode	Synopsis	Ben's Aliens	Clock's Aliens
Clock 10 Returns	It's been five years since you removed the Omnitrix. A normal life has suited you thus far. That is, until you find Geralt has gone missing, as well as having uncovered a secret plot by an ancient alien race to destroy all life in the universe.	Swampfire, Echo-Echo, Humungousaur	Jetray, Swampfire, Humungousaur
Everybody Talks About the Weather	The search for Geralt and your quest to stop the Highbreed leads you to a farm where you discover a young Pyronite, the same species as Heatblast.	Jetray, Swampfire	Swampfire, Chromastone
Kevin's Big Score	While working on Geralt's Rustbucket, Kevin makes a break for it, stealing the camper. Perhaps he's not so turned from his criminal past after all.	Big Chill (2x), Echo-Echo	Goop, Brainstorm, Big Chill
All That Glitters	You meet a young man named Michael Morningstar, who claims to be a member of the Plumbers. However, he takes a suspicious interest in Taryn.	Humungousaur, Chromastone, Jetray	Humungousaur, Spidermonkey, Swampfire
Paradox	The abandoned military base of Los Soledad is home to a monster that destroys everything it touches, and a mysterious and curious British man.	Chromastone, Swampfire, Jetray, Humungousaur	Clock 10: Echo-Echo, Big Chill, Humungousaur, Spidermonkey Clock 23: Power Stone, Dog-Nabbit, Muck-Amuck, Crystallo, RADI8, Windy Hindy
Geralt Out	While searching for Taryn's brother Ken, you come to an unsuspecting hatchery where the DNAliens and a Highbreed leader are conducting their work, as well as an unexpected reunion.	Humungousaur, Big Chill, Jetray	Spidermonkey, Big Chill, Goop
Pier Pressure	While on a date with Julie, you're ambushed by a strange creature that reminds you of Upgrade.	Brainstorm (selected alien was Jetray), Jetray, Humungousaur	Chromastone, Big Chill, Brainstorm
Plumbers' Helpers	During a fight, Kevin is kidnapped by a Kineceleran girl and Tetramand boy, XLR8 and Four Arms' species respectively.	Big Chill, Swampfire	Big Chill, Humungousaur, Echo-Echo, Jetray, Brainstorm
X = Clock + 2	While attempting to keep the peace with the war-loving Incurseans, you finally transform into your tenth transformation: Alien X.	Alien X, Swampfire	Alien X, Humungousaur, Chromastone, Big Chill
Darkstar Rising	While getting in legal trouble with the Plumbers, as well as trouble with an unprovoked Highbreed, a threat returns to take their revenge.	Chromastone, Goop, Humungousaur (2x), Jetray, Spidermonkey, Echo-Echo	Spidermonkey, Chromastone, Alien X
Good Copy, Bad Copy	In a sense of deja vu of what happened with Kevin five years ago, your aliens are off doing things you haven't done, and you're getting the blame for it.	Ben: Big Chill, Humungousaur, Goop, Swampfire, Brainstorm, Jetray, Chromastone Albedo: Humungousaur (2x), Jetray (2x), Big Chill (2x), Goop, Echo-Echo, Spidermonkey	Clock: Jetray, Big Chill, Echo-Echo, Humungousaur Albedo: Jetray, Big Chill, Spidermonkey, Swampfire, Humungousaur, Goop, Chromastone
Alone Together	A freak accident causes you to wind up on a desert planet with a Highbreed.	Echo-Echo, Big Chill, Swampfire (2x)	Big Chill (2x), Swampfire (2x), Echo-Echo, Humungousaur, Spidermonkey
War of the Worlds	The time has come for the final assault on the Highbreed as they make their march on Earth. Taryn and Kevin have assembled a team, while Azmuth has given you more power than you know.	Cannonbolt, Jetray, Swampfire (2x), Upchuck, Way Big, Brainstorm, Humungousaur, Lodestar	Clock 10: Slapback, Spidermonkey, Humungousaur, Brainstorm, Shocksquatch, Atomix, Alien X Fusion Clock: Heatblastrodactyl, Waymungousaur, Gravadactyl Clock 23: Speedyquick, Rollaway, Giant-Manster, Mr. Mummy  Skurd: Chromastone, Big Chill, Diamondhead, Astrodactyl, Wildvine
Vengeance of Vilgax	Your arch enemy Vilgax has returned, once again hellbent on taking the Omnitrix. With only a limited number of aliens available, Kevin decides it might be best to find a "way around" your limits to defeat him.	Ben: Jetray (2x), Cannonbolt, Upchuck (selected alien was Humungousaur), Brainstorm, Swampfire, Big Chill, Humungousaur, Chromastone (selected alien was Way Big), Diamondhead Lost: Chromastone, Spidermonkey, Goop, Way Big	Clock: Astrodactyl, Cannonbolt (selected alien was Humungousaur), Shocksquatch, Eye Guy (selected alien was Shocksquatch), Snare-Oh (selected alien was Spidermonkey), Lodestar (selected alien was Big Chill), Swampfire, Chromastone, Diamondhead, Goop, Squidstrictor (selected alien was Atomix), Atomix, Alien X Lost: Slapback, Lodestar, Big Chill, Atomix
Simple	An alien girl contacts you and your team to come help her planet, which is currently ravaged by a racially powered civil war.	Jetray, Lodestar (selected alien was Humungousaur), Spidermonkey, Humungousaur, Swampfire, Goop, Way Big	Goop, Spidermonkey, Big Chill, Simpleten, Humungousaur, Atomix
Alien Swarm	In an attempt to intercept a shady business deal with alien technology, you discover a plot by a mysterious man named Victor Validus to enslave the Earth.	Big Chill (selected alien was Spidermonkey), Humungousaur, Nanomech	Big Chill, Heatblast (selected alien was Spidermonkey), Astrodactyl, Lodestar, Humungousaur, Spidermonkey, Nanomech
Busy Box	A piece of technology that defies the normal rules of your universe's tech crashes in town, and it has no problem mimicking your every move.	Ben: Humungousaur, Spidermonkey, Swampfire, Lodestar (selected alien was Humungousaur) Naljian Destructor: Humungousaur, Spidermonkey, Swampfire, SwampMonkeySaur	Clock: Nanomech, Upchuck (selected alien was Alien X), Lodestar Naljian Destructor: Nanomech, Upchuck
Singlehanded	An alien bounty hunter comes for the Omnitrix. During your battle with him, you somehow end up in the Null Void, but the hand on which you wear the Omnitrix is gone.	Spidermonkey, Humungousaur (2x), Big Chill, Swampfire, Jetray, Diamondhead (selected alien was Swampfire or Humungousaur), Goop, Brainstorm, Echo-Echo	Nanomech (2x), Wildvine, Simpleten, Decagon Vreedle, Diamondhead, Brainstorm, Way Big
The Con of Rath	A trip to deliver a peace treaty results in you becoming trapped in the form of a new alien, one which seems to attack almost anything that breathes.	Rath (2x)	Rath
The Final Battle	Two threats have teamed up to take you down, and take your Omnitrix as well. The fate of the galaxy lies in your hands, but so does the fate of those closest to you.	Ben: Big Chill, Jetray (3x), Humungousaur, Swampfire, Ultimate Swampfire Albedo: Diamondhead, Swampfire, Spidermonkey, Rath, Humungousaur, Ultimate Humungousaur Bioids: Humungousaur, Lodestar, Diamondhead, Spidermonkey, Swampfire	Clock: Spidermonkey, Humungousaur, Big Chill (2x), Swampfire, Ultimate Swampfire, Ultimate Big Chill Albedo: Squidstrictor, Chromastone, Rath, Eye Guy, Snare-Oh, Humungousaur, Ultimate Humungousaur Bioids: Atomix, Brainstorm, Rath, Goop, Chromastone, Jetray
Save the Last Dance	Something's going weird with one of your aliens. Perhaps it's deja vu of the days of Ghostfreak?	Big Chill (3x, second time selected alien was Jetray), Jetray	Big Chill (3x, first time selected alien was Jetray, second time selected alien was Chromastone), Jetray, Chromastone

Ultimate Alien

Episode	Plot	Ben's Aliens	Clock's Aliens
Fame	After your secret identity has been revealed to the world, you discover that a rogue, unidentified species has been stealing parts from NASA.	Humungousaur, Jetray, Chromastone, Spidermonkey (2x), Ultimate Spidermonkey	Simpleten, Ultimate Simpleten, Jetray, Shocksquatch, Ripjaws
Duped	Your responsibility to the world as a hero, to your friends, and to yourself has lead you to realize you can't be everywhere at once... Or can you?	Normal Ben: Rath, Echo-Echo (2x), Cannonbolt, Lodestar Arrogant Ben: Echo-Echo (2x), Upchuck Empath Ben: Echo-Echo (2x), Humungousaur, Big Chill	Normal/First Clock: Rath, Slapback (2x), Cannonbolt, Ultimate Cannonbolt Second Clock: Spidermonkey, Ultimate Spidermonkey, Humungousaur, Ultimate Humungousaur, Slapback  Third Clock: Rath (2x), Ultimate Rath, Slapback
Video Games	You've been approached to be scanned for a Clock 10 video game. At the same time, though, a strange robot has arrived that seems to counter all your abilities.	Four Arms, Humungousaur (2x), Nanomech (2x), Jetray (2x), Spidermonkey (2x), Swampfire (2x), Cannonbolt (2x), Big Chill (2x), Lodestar (2x), Way Big
Escape From Aggregor	After thwarting a plot of Dr. Animo's, you learn your town is under seige by a rampaging alien turtle, just as unidentified a species as Bivalvan.	Four Arms, Brainstorm, Big Chill, Ultimate Big Chill
Too Hot to Handle	Kevin unintentionally finds P'andor, one of Aggregor's prisoners. He claims that he "wants out." Out of what, exactly? Well...	Humungousaur, Ultimate Humungousaur, Jetray, Water Hazard, Big Chill, Cannonbolt, Ultimate Cannonbolt
Andreas' Fault	The Forever Knights are acting strange, stealing materialistic objects that they'd otherwise never steal. As it turns out, one of the escaped prisoners of Aggregor is involved.	Spidermonkey, Jetray, Goop, Swampfire
Fused	Ra'ad, the last of Aggregor's escaped prisoners, attacks you in your home. When trying to figure out exactly why, you're attacked by Aggregor, and find you only have access to one transformation.	Jetray, AmpFibian, Brainstorm	AmpFibian
Ultimate Aggregor	You're informed by a Plumber scout that Aggregor has been found in Los Soledad, using Paradox's old technology for some unknown purpose.	Big Chill, Ultimate Big Chill, Swampfire, Ultimate Swampfire, Nanomech, Humungousaur
The Map of Infinity	After a defeat by Ultimate Aggregor, you're informed by Azmuth and Paradox that he is after the Map of Infinity, a four-piece object capable of sending its user anywhere in existence.	Humungousaur, Big Chill, Echo-Echo, Ultimate Echo-Echo, Four Arms, Cannonbolt
Deep	Searching for the second piece of the Map of Infinity sends you Piscciss, the homeworld of Ripjaws' species.	Goop (2x), Humungousaur, AmpFibian, Big Chill (2x), Ultimate Big Chill	Ripjaws
Where the Magic Happens	The third Map piece is located beyond a sealed, magic door, and only one of your villains knows how to enter.	Four Arms, Jetray, Cannonbolt, Chromastone, Humungousaur, Ultimate Humungousaur
Perplexahedron	The final piece rests within the absolute unit of an artifical planet known as the Perplexahedron.	Humungousaur (selected alien was Chromastone), Ripjaws, Spidermonkey, Swampfire, Cannonbolt, Ultimate Cannonbolt
The Forge of Creation	With Aggregor having obtained all the Map pieces and all hope seems gone, you obtain help from the most unlikely of places.	Present Ben: Alien X, Terraspin, NRG (selected alien was Big Chill), Four Arms, Swampfire, Ultimate Swampfire Past Ben: Heatblast, Wildmutt, Four Arms (selected alien was Upgrade), Stinkfly	Present Clock: Past Clock:
Absolute Power	After defeating Aggregor, Kevin has gone power hungry, once again having become a maddened mutant monster from the energy he's absorbed. Taryn wants to try to bring him back, but you're not so sure that's an option this time.	NRG (2x), Chromastone, Terraspin, Nanomech, Way Big, Lodestar, Humungousaur, Big Chill, Spidermonkey, Echo-Echo, Ultimate Echo-Echo
Greetings From Techadon	A constant stream of robots known as Techadons attack, and each one seems to be more powerful than the last.	Brainstorm, Goop, Rath, Echo-Echo, Ultimate Echo-Echo
Double or Nothing	You and your team attend an uncannily accurate (and somewhat of a parody) show called "Clock 10 Live" to see what's going on.	Ben: Armodrillo, Water Hazard, NRG (2x), Spidermonkey (2x), Ultimate Spidermonkey (2x), Echo-Echo, Ultimate Echo-Echo Albedo: Rath	Clock: Albedo:
Clock 10,000 Returns	A signal from the Ultimatrix brings you to a warehouse which holds an artifact out of time: The Hands of Armageddon. An ancient being known as Eon is after it, and it seems you have another helping hand this go around.	Ben: Spidermonkey, Goop (selected alien was Rath), Way Big, Swampfire, Ultimate Swampfire, Jetray Ultimate Ben: Ultimate Humungousaur (2x), Heatblast, Arctiguana, Clockwork (2x), Spidermonkey, Big Chill, Diamondhead, XLR8	Clock: Ultimate Clock:
Prisoner Number 775 is Missing	After Area 51 is destroyed, it is revealed to have an alien prison underneath it with 774 alien prisoners inside. Wait, that can't be right, there's supposed to be 775...	Swampfire, Big Chill, Rath (selected alien was Humungousaur), Echo-Echo (selected alien was Humungousaur), Humungousaur, Wildmutt, Ultimate Wildmutt, ChamAlien
The Ultimate Sacrifice	You lose control of an Ultimate Form during a fight, and it results in you being trapped inside the Ultimatrix, where your Ultimates reside.	Ben: Humungousaur, Ultimate Humungousaur (2x), Ghostfreak, Heatblast, Brainstorm, Diamondhead, Way Big Ultimates: Cannonbolt, Swampfire, Big Chill, Humungousaur, Spidermonkey, Echo-Echo	Clock: Ultimates:
The Night of the Living Nightmare	You wake up one night to find yourself alone. Entirely alone. The entire neighborhood is barren, except for many of your fallen enemies. What could be going on here?	Ben: NRG, Four Arms, Goop, Ultimate Spidermonkey, Lodestar, ChamAlien, AmpFibian, Fasttrack Albedo: Fasttrack, ChamAlien, Big Chill, NRG, Brainstorm	Clock: Albedo:
Inspector 13	Following up on the events from Greetings from Techadon, a Techadon Weapon Master arrives and kidnaps you, intending to use the Ultimatrix to enhance the Techadons.	Ben: Echo-Echo, Terraspin, Rath Gwen: Diamondhead, Clockwork, Humungousaur, Upchuck, Rath Kevin: Jetray, Wildmutt, Way Big, Nanomech, AmpFibian	Clock: Taryn: Kevin:
Heroes United	A monster of a mechanical marvel appears from a mysterious portal and attacks. It manages to get you through the portal, where you find yourself in an alternate world where no one knows you, and rather than aliens, E.V.O.s run amuck, one of which going by the name of Rex Salazar.	Ben: Humungousaur, Diamondhead (3x), Lodestar, Rath (2x), Big Chill (4x), Cannonbolt (2x), XLR8, Four Arms, Shocksquatch, Upgrade, Upchuck Alpha: Heatblast, Four Arms, Humungousaur	Clock: Upgrade Alpha:
When in Rome...	A tussle with the Forever Knights in Rome leads you to the first piece of an ancient puzzle.	Armodrillo, Terraspin, Humungousaur, Ultimate Humungousaur
Awful Tower	You head to France after hearing of Null Void monsters attacking. There, the ancient mystery thickens.	Water Hazard, NRG, Swampfire, Ultimate Swampfire
Devil's Advocate	A signal interference causes Azmuth to believe the next piece of the Potis Altiare is in Wyoming. Specifically, at Devil's Tower.	Armodrillo, Humungousaur, Spidermonkey, Ultimate Spidermonkey
Terra-Caught Off Guard	Taryn detects that the next Potis Altiare piece is located somewhere along the Great Wall of China.	Swampfire, AmpFibian, Big Chill, Ultimate Big Chill
Tokyo Nights	Cooper sends you a distress signal, claiming he's under attack in Tokyo and for you to come alone.	Armodrillo, NRG, Spidermonkey, Ultimate Spidermonkey
Amazon Prime	You're given a map to the last two pieces of the Potis Altiare. Your first of these last two stops: the Amazon Rainforest.	AmpFibian, Big Chill, Echo-Echo, Ultimate Echo-Echo
On the Rome Again	You return to Rome to obtain the last (or first?) piece of the Potis Altiare. However, you find it in the posession of a jealous superhero.	Terrapin, Armodrillo, Swampfire, NRG
Shin To'kustar	The evil To'kustar lands in Tokyo. It's up to you to reach him and finish this fight once and for all.	Ben: Water Hazard, Spidermonkey, Humungousaur, Way Big Albedo: Way Big	Clock: Way Big Albedo: Way Big, Ultimate Way Big

Omniverse

Episode	Plot	Ben's Aliens	Clock's Aliens
The More Things Change	When Taryn and Kevin leave so the former can focus on continuing her proper education, you find yourself being a lone hero for the first time since you began. Things aren't so different, though, still plenty of alien conspiracies and secrets and plots to kill you.	Present Ben: Lodestar, Spidermonkey (selected alien was Humungousaur), Cannonbolt, Bloxx, NRG (selected alien was XLR8), Water Hazard (selected alien was Humungousaur), Terraspin, Armodrillo, Shocksquatch Young Ben: Four Arms, Feedback Zed: Crabdozer, Buglizard	Present Clock: Young Clock: Feedback Zed: Crabdozer, Buglizard
Trouble Helix	A flashback sequence of events reveals the origins of a foe known as Malware.	Present Ben: Chromastone, Cannonbolt Young Ben: XLR8, Feedback, Four Arms (selected alien was Diamondhead), Heatblast, Cannonbolt, Diamondhead	Present Clock: Young Clock:
It Was Them	Following an attack by another monster, you believe the threats to be connected to Dr. Animo.	Ben: Diamondhead, Echo-Echo (selected alien was Swampfire), Rath (selected alien was Swampfire) Zed: Slamworm, Mucilator	Clock: Crashhopper Zed: Slamworm, Mucilator
So Long and Thanks for all the Smoothies	A mysterious and dark ship enters Earth's atmosphere. You find out that the ship belongs to an ancient, fifth-dimensional species, and that it houses a universe-threatening device.	Crashhopper, Grey Matter (selected alien was Rath), Spidermonkey, NRG, Alien X	Alien X
Of Predators and Prey	The monster-related threats come to a head when you find out the person behind them: Khyber, an alien huntsman bent on taking your Omnitrix and hanging it on his wall.	Present Ben: Stinkfly (2x, selected alien was Humungousaur), Wildmutt (2x, selected alien was Humungousaur), Crashhopper (2x), Armodrillo (2x, selected alien was Humungousaur), Heatblast (2x), Ball Weevil, Rath, Humungousaur, Grey Matter (selected alien was Way Big), Big Chill Young Ben: Stinkfly, Feedback Zed: Crabdozer (2x), Buglizard (2x), Mucilator (2x), Slamworm (2x), Terroranchula, Tyrannopede Phil: Terroranchula	Present Clock: Young Clock: Zed: Phil: Terroranchula
Outbreak	During a training session, the Plumbers Base becomes under attack by a mysterious Cerebrocrustacean, a member of Brainstorm's species. He escapes, but not before jeopardizing the Omnitrix.	Ben: Wildvine, Humungousaur, Walkatrout, Pesky Dust, Mole-Stache, The Worst, Kickin Hawk Rook: Upchuck Psyphon: Heatblast Liam: Humungousaur Bubble Helmet: Shocksquatch Fistina: Upgrade	Clock: Puffertrip, Pesky Dust, Mole-Stache, The Worst Rook: Psyphon: Liam: Bubble Helmet: Fistina:
Malefactor	While being the reluctant victim of a dunking tank at a town festival, Khyber's predators attack.	Present Ben: Brainstorm, Wildmutt, Spidermonkey, Stinkfly, Humungousaur (3x), Heatblast (2x), Armodrillo, Big Chill Young Ben: XLR8, Feedback Zed: Buglizard, Crabdozer, Slamworm, Hypnotick	Present Clock: Young Clock: Zed:
Showdown	Galvan Prime is under attack by Khyber and Dr. Psychobos, while Galvan B takes a hit from the less obvious threat of Malware.	Present Ben: Heatblast (selected alien was Water Hazard), Humungousaur (2x), Ball Weevil, Big Chill, NRG, Way Big, Feedback Young Ben: Four Arms, Feedback (4x) Zed: Omnivoracious, Tyrannopede, Terroranchula, Hypnotick, Vicetopus	Present Clock: Feedback Young Clock: Feedback Zed:
Clock Again	During a fight with Eon, a freak accident happens. What appears to be nothing at first results in you realizing that your surroundings appear more like they did five years ago, including the Omnitrix.	Present Ben: Diamondhead, Ditto, Wildvine, Clockwork Young Ben: XLR8, Diamondhead, Armodrillo, Goop, NRG, Wildmutt, Big Chill (selected alien was Armodrillo), Arctiguana, Clockwork	Present Clock: Young Clock:
Store 23	While visiting Mr. Smoothie's, you find that this one in particular is run by an insectoid alien, and that it hops dimensions, only for it to wind up stuck in Dimension 23.	Ben 10: Eatle, Feedback, XLR8 (2x), Shocksquatch, Upchuck, Spidermonkey, Mole-Stache, Wildmutt, Heatblast Ben 23: Freezelizard, Rollaway, Electricyeti	Clock 10: Clock 23:
Tummy Trouble	A distress signal sends you and Rook to the planet Peptos XI, home to Upchuck's species, where you learn that they are being invaded by the Incurseans.	Upchuck (3x), Big Chill, Spidermonkey, Water Hazard, Kickin Hawk
While You Were Away	Rook's younger brother, simply named Young One, contacts you, saying that the people of their homeworld are acting... strange.	Terraspin, Gravattack, Ball Weevil, Astrodactyl
The Frogs of War	The Incurseans attack Earth, finally having the balls to do so despite it being your turf.	Way Big (2x), NRG, Water Hazard, Astrodactyl, Snare-Oh, Rath, Bloxx (selected alien was Big Chill), Nanomech (selected alien was Humungousaur), Big Chill, Four Arms, Humungousaur, Crashhopper, XLR8 (2x), Bullfrag
The Ultimate Heist	You wake up in a cell in the prison of the Plumber's base, with no one willing to listen to your pleads to let you out, as you find out you are made to look just like Albedo.	Ben: Big Chill, Four Arms (2x), Nanomech, Eye Guy (2x), Water Hazard, Terraspin, Shocksquatch Albedo: Wildvine, Goop, Big Chill, Humungousaur (2x), Ultimate Humungousaur, Ultimate Echo-Echo, Ultimate Spidermonkey	Clock: Albedo:
A Fistful of Brains for a Few Brains More	After chasing Albedo, you find yourself kidnapped, trapped in a desolate wasteland where your predators roam.	Ben: Cannonbolt (2x, selected aliens were Way Big and Astrodactyl), Ditto, Astrodactyl (selected alien was Way Big), Goop, Upchuck (2x), Eye Guy, Shocksquatch, Crashhopper, Diamondhead, Feedback, Terraspin, Gravattack, Pesky Dust (selected alien was Way Big), Water Hazard, Bloxx, Atomix Albedo: Brainstorm, Ultimate Albedo (5x), Ultimate Spidermonkey (2x), Ultimate Humungousaur (2x), Arctiguana, Ultimate Arctiguana, Armodrillo, Gravattack, Ultimate Gravattack Khyber's Pet: Panuncian, Tyrannopede, Crabdozer, Mucilator, Buglizard, Omnivoracious, Vicetopus, Terroranchula, Hypnotick, Slamworm	Clock: Albedo: Khyber's Pet:
The Anur Mash	A trip into space causes you to crash land on the mysterious "planet" of Anur Phaetos: the homeworld of Ghostfreak.	Wildvine, Crashhopper, Bloxx, Feedback, NRG
Are You My Mummy?	Although you've managed to escape Anur Phatoes, Rad's ship doesn't make it far before you wind up on the desert planet of Anur Khufos, home to Snare-Oh's species.
Where, Wolf?	Learning more of Zs'Skayr's plans, you try to head for Anur Transyl, but end up on its moon of Luna Lobo instead when it suddenly reappears in the sky, and its Loboans aren't happy.
It's Alive!	Your team finally manages to reach Anur Transyl, Frankenstrike's planet, where you must trek to reach Zs'Skayr in time.
The Vampire Strikes Back	Zs'Skayr manages to revive the Vladat warlord, Lord Transyl, who in turn holds the entire system hostage through use of his planet Anur Vladias.	Astrodactyl, Whampire, Atomix	Alien X
And Then There Were None	You've lived a normal life, even more so since the most boring summer ever seven years ago. But things get strange when you suddenly meet... yourself.	Ben 10: Spidermonkey, Wildmutt, Astrodactyl Ben 23: Build-A-Guy Gwen 10: Florauna Ben 10,000: Saur Arms, Atomic-X Bad Ben: Ghostfreak, Gravattack Mad Ben: Rath Benzarro: Frankenstrike, Snare-Oh Nega Ben: Gutrot Albedo: Humungousaur, Ultimate Humungousaur, Ultimate Spidermonkey	Clock 10: Clock 23: Taryn 10: Clock 10,000: Bad Clock: Mad Clock: Clockzarro: Nega Clock: Albedo:
And Then There Was Clock	With Vilgax having destroyed all your alternate selves, Paradox proposes a new approach: going and obtaining the Omnitrix from the past to bring the others together before restoring the multiverse.	NW Ben: Grey Matter, Cannonbolt, Armodrillo, Clockwork (2x) Ben 10: Diamondhead Ben 23: Eye Guy, Big Bug, Build-A-Guy, Vomit Man Gwen 10: Kineceleran, Petrosapien, Florauna, Arburian Pelarota Ben 10,000: Atomic-X (2x), Saur Arms Bad Ben: Buzzshock Benzarro: Frankenstrike Albedo: Ultimate Echo-Echo Young Ben: Heatblast	NW Clock: Clock 10: Clock 23: Taryn 10: Clock 10,000: Bad Clock: Mad Clock: Clockzarro: Nega Clock: Albedo: Young Clock: Ghostfreak
Universe v. Firefly	The Celestialsapiens put you on trial for having recreated the universe.	Ditto, Bloxx, Upchuck, Terraspin, Way Big, Four Arms, Eye Guy, Alien X	Alien X
The Rooters of All Evil	The Rooters, a darker, splinter-group of the Plumbers, arrive with a mysterious interest in Kevin's whereabouts.	Ball Weevil, Upchuck, AmpFibian, Gravattack
Weapon XI	The Rooters have seemingly taken control of Kevin, as well as the Plumbers' Kids that you once called allies. As it turns out, their creation was meant to serve a single purpose: Your destruction.	Present Ben: Atomix, Feedback, Alien X, Kickin Hawk, Ball Weevil (selected alien was Way Big), Gutrot, Eye Guy Young Ben: Eye Guy, XLR8	Present Clock: Young Clock:
It's a Mad, Mad, Mad Clock World	Your day off is interrupted by both the presence of Clock 23 as well as Rook calling you in on a mission regarding a new evil threat: Maltruant.	Ben 10: Walkatrout (selected alien was XLR8), Goop (selected alien was Gravattack), The Worst, Mole-Stache, Bullfrag, Jury Rigg, Clockwork (2x), Gravattack, Eye Guy, Bloxx, Rath, Nanomech, Grey Matter Ben 23: Speedyquick, Toolboxx, Nighty Knight, Mr. Monkey, Rollaway, Techno-Bubble (2x), Dino-Mighty, Freezeghost, Handy Man, Lightning Volt, Brainfrog Mad Ben: Diamondhead, Upchuck, NRG, Way Big	Clock 10: Clock 23: Mad Clock:
Stuck on You	Khyber has returned, and although he has no pet to wield his Nemetrix, he has instead teamed up with the Slimebiote known as Skurd.	Ben: Heatblast, Humungousaur Skurd: Crabdozer, Bloxx, Armodrillo, Diamondhead Khyber: Tyrannopede	Clock: Skurd: Khyber:
Let's Do the Time War Again	When Eon attacks, a huge amount of timey wimey events take place that make things a bit... confusing.	Ben: Eatle, Feedback, Gravattack, Four Arms, Big Chill Skurd: Wildvine Ben 10,000: Crashocker, Jury Grade, Way Chuck	Clock: Skurd: Clock 10,000:
The End of an Era, A New Dawn	You're rushed by Paradox into the future to help your future self in a fight against Maltruant. As it turns out, he's far closer to achieving his goal than it was once thought.	Ben: Whampire (2x), Ghostfreak (2x), XLR8 (2x), Mole-Stache (2x), Chromastone (2x), Feedback (2x), Four Arms, Ripjaws, Heatblast, Wildmutt, Dimandhead, Upgrade, Cannonbolt, Wildvine, Blitzwulf, Upchuck, Ditto, Eye Guy, Way Big, Swampfire, Echo-Echo, Humungousaur, Big Chill, Brainstorm, Spidermonkey, Goop, Alien X, Lodestar, Nanomech, Rath, Water Hazard, AmpFibian, Armodrillo, Terraspin, NRG, Clockwork, Shocksquatch, Eatle, Jury Rigg, Bloxx, Gravattack, Crashhopper, Ball Weevil, Walkatrout, Pesky Dust, The Worst, Kickin Hawk, Toepick, Astrodactyl, Bullfrag, Atomix, Gutrot Skurd: Diamondhead, Heatblast, Alien X Ben 10,000: Humungoopsaur, Atomic-X	Clock: Alien X (2x), Ghostfreak, Four Arms, Stinkfly, XLR8, Diamondhead, Ripjaws, Heatblast, Upgrade, Wildmutt, Grey Matter, Cannonbolt, Wildvine, Blitzwulf, Snare-Oh, Frankenstrike, Upchuck, Ditto, Eye Guy, Way Big, Arctiguana, Spitter, Feedback, Jetray, Swampfire, Humungousaur, Chromastone, Goop, Brainstorm, Big Chill, Spidermonkey, Echo-Echo, Slapback, Shocksquatch, Atomix Skurd: Clock 10,000: