Now on his own, Ben sets out to be a solo superhero, with new alien heroes at his disposal, but Grandpa Max has other plans.
Ben and Rook explore the hidden alien city, but Khyber is hot on their tracks...
The Megawhatts return, but are not looking for destructive mischief this time.
Ben, Gwen and Grandpa Max pay a visit to Azmuth. However, so does someone else...
Ben must recapture an endangered alien causing havoc, but an alien activist wants to save it.
Dr. Animo has escaped his Plumber prison, and Ben and Rook must track him down before he transforms the world into his personal mutant ant farm!
Argit and Vreedle Brothers are fighting for possession of a doomsday device...
Ben and Rook come across elastic, hot blooded aliens that plan to activate a volcano with a nuclear bomb engine.
After a heated argument, Ben and Rook go their separate ways, giving Khyber his best chance to capture Ben!
While captive in Khyber's Ship, Ben learns details about the origin of the Nemetrix, and the link between Khyber, Malware and Dr. Psychobos!
When Dr. Psychobos steals a part out of the Omnitrix, causing chaotic side-effects, it's up to Ben, Rook, and a small team of Plumbers to get everything back to normal.
Gwen and Kevin pay Ben a surprise visit with an angry Tetramand princess and her father's fleet of warships prepared to attack Earth.
Magister Patelliday is kidnapped by pirates.
Ben and Rook must stop Trumbipulor from gaining absolute power while Blukic and Driba set out to find Mr. Smoothy's.
Khyber attacks Ben and Rook at a festival.
Ben's childhood rival, Billy Billions, turns Ben and Rook into kids again.
Ben meets Rook's family during a visit to their home planet, which is being targeted for its precious resource by an old foe.
When Eon forces young Ben and teenage Ben to switch minds, only the time-traveling Professor Paradox can sort things out and help Ben stop Eon from taking over the timelines.
Ben meets an alternate version of himself while searching for a 23rd Mr. Smoothy's store.
As payment for destroying his car, Mr. Baumann orders Ben to make deliveries for him without using the Omnitrix.
The Faction infiltrates Galvan Prime in a plot to take out Azmuth.
Ben must deal with a past failure; a deranged Malware launches his final attack.
The Gourmand Queen is captured by the Incurseans, forcing Ben and Rook to rally her feuding subjects to save her.
Ben and Rook escort Vilgax to a maximum-security prison planet, but the Incurseans have other plans.
Dr. Psychobos and Princess Attea lead an invasion of Rook's home planet.
Ben and Rook must act fast to stop the Incursean Invasion, even if they have to make amends with each other.
The Incurseans take control of Earth, so Rook and the Plumbers must mount a resistance while Ben is missing.
Looma attacks Ester's village, forcing Ben, Rook, and Julie after capturing Fistina to stop her.
With Plumber agents trapped in Incursean territory, Ben and Rook must employ the services of Rad Dudesman, the roughest, toughest smuggler in the galaxy.
Dr. Animo takes over Plumber Headquarters at Mount Rushmore in order to spread his mutation ray all over the Earth, via the Plumber's satellites.
The Secret Saturdays come to Bellwood to investigate a rash of Chupacabra attacks.
Ben as Gravattack attempts to moderate a fragile peace treaty, but must endure the attacks of tiny alien fleas, which have inhabited his body.
Ma Vreedle threatens to blow up the sun if Ben and the Plumbers don't find her missing son!
Ben and Rook must stop the Forever Knights from wiping out all alien DNA.
Ben, Gwen and Cousin Lucy try to find out how Psyphon's thugs are getting Plumber technology.
Kevin and Rook run into an old enemy from the Null Void while attending an intergalactic auto show.
Albedo seeks a device that will finally change him back into his Galvan form; meanwhile, Ben is locked in Plumber Headquarters prison.
Grandpa Max and Rook are looking all over the galaxy for Ben who is trapped on Khyber's hidden personal hunting preserve.
Ben, Rook and Grandpa Max must stop Ultimate Albedo from absorbing Azmuth's intelligence and taking over the galaxy.
Grandpa Max's old Plumber partner, seeks Max's help to tame the monster within.
Ben and Rook must stop Zombozo and the Circus Freaks from turning everyone in Bellwood into zombie clowns!
An old enemy emerges while Ben and Rook visit Kevin and Gwen at college.
Vilgax's former lackey Psyphon is elated when his master returns.
Ben and Rook are called to London to investigate the Forever Knights' latest activities.
Dr. Animo from the future comes back to the present to help himself defeat Ben once and for all.
Ben and Rook enlist the help of intergalactic smuggler Rad Dudesman to fly them through the Anur System—the home of the monstrous aliens!
Still stranded on the monster planet Anur Transyl, Ben and Rook reluctantly team up with Charmcaster to take on Zs'Skayr.
Ben, Rook, and Rad Dudesman come face to face with the evil Lord Transyl, a vampire-like alien who can make anyone his loyal slave!
The princesses Looma and Attea are at odds over who gets to marry Ben!
Ben finally meets the ones responsible for his intergalactic TV show, and the actor who makes Ben 10 more famous than Ben himself!
Vilgax and Eon team up to wipe out every Ben in every dimension.
Professor Paradox unites the good Bens from across all dimensions to take on Vilgax, Eon, and the evil Bens in the ultimate showdown.
Billy Billions, Kangaroo Kommando, and Captain Nemesis team up to take down Ben, and claim his place as protector of Bellwood?!?
Psyphon and a gang of bounty hunters are after Argit, who is in possession of a dangerous weapon.
Meet the Rooters, the Black Ops wing of the Plumbers from the Null Void. They've come looking for someone close to Ben, and they mean business.
A mysterious Galvan arrives and demands Blukic and Driba to give back a super powerful weapon needed to stop a threat to Earth.
Rook is under the influence of Fistrick's "bro" essence, and starts to act like a bro. Can he and Ben infiltrate an alien fight club to claim the Golden Fist?
Ben gets dragged into intergalactic court by the other Celestialsapiens for recreating the universe.
Kevin and Argit attempt to warn the Amalgam Kids about the Rooters intentions. Meanwhile Ben, Rook, and Gwen set off to find Kevin and land themselves in the Null Void!
The Rooters have seemingly turned Kevin and the Amalgam Kids against Ben. Can Rook and Gwen help him overcome the opposition and escape the Null Void?
Ben's country cousin wants to become a hero like Ben.
Rook's former teacher is willing to save Revonnahgander traditions at any cost.
At Gwen's college, Ben suspects a new teacher and new student are old enemies.
The grouchy storekeeper has a big secret, and she's not of this Earth.
Alien artifacts in Bellwood attract enemies from the future and friends from the past.
As Wildvine, Ben goes undercover with a crime ring and is tempted by their extreme lifestyle.
Everybody's favorite alien con man, takes on a shady sidekick, in a shocking new business.
Pa Vreedle reunites with Ma for all-out, total cosmic destruction!
Alternate dimensions, duplicate Bens, and villains from throughout time and space! Just another day in Bellwood.
Ben, Ben 23, and Dr. Psychobos become reluctant allies in a parallel-dimension maelstrom.
11-year-old Ben, Gwen, and friends go on the adventure of a lifetime in their own backyard.
Khyber, aided by a booger-like Slimebiote named Skurd, attacks Ben & co, but the tables turn when Skurd gloms onto Ben!
Ben, Skurd, and Rook find themselves caught in an endless time loop as enemies from the future converge on Bellwood.
Ben and Rook join Kai Green on a perilous alien relic hunt through South America.
Charmcaster turns Gwendolyn into a totem to exact her revenge once and for all.
While Rook is stuck on graveyard shift at Plumber HQ, his sensei Kundo returns as a cyborg to purge the galaxy of technological influence.
Ben finally manages to rid himself of Skurd... just when he needs the Slimebiote most.
Ben fights for his wife on an alien reality show.
The Time War races towards its dramatic conclusion, with the fate of the entire universe and everything in it since the beginning of time resting in the hands of Ben!
Maltruant tries to achieve his main goal of removing time from existence. It is up to Ben and Rook to stop him once and for all.
