Ben 10: Ultimate Alien : Season 1

Ben's secret identity is revealed to the entire world, and he is now a megastar superhero loved and favored all over by kids, teenagers,and few adults, but distrusted by many adults. After having a long talk with Julie in Ben's brand new car, Kevin and Gwen arrive in Kevin's car and tell Ben where to find the one who told his secret to the world and they go to "pay him a visit". When they arrive they find out how the tattletale, a young boy named Jimmy Jones, figured out Ben's identity and with

Ben needs to be at more than one place at once; he has to fight the Forever Knights with Kevin, go to Julie's tennis game, and see a Sumo Slammers movie. So Ben transforms into Echo Echo and divides in three and changes back to Ben, but this time there are three Bens with one part of his personality. One is the real Ben, the other is the honest, intimate Ben, and the last one is the immature Ben. The Honest Ben goes with Kevin to the museum, the Immature Ben stays to watch Julie's match, and the

After Jimmy Jones reveals Ben's identity, some of his enemies (such as Zombozo, Rojo, Charmcaster, Vulkanus, and Sevenseven) team up to try to attack his family. Now Ben and his friends have to protect them no matter what.

After defeating Ssserpent with Fourarms, Ben's celebrity status lands him in a starring role in a video game. The developers ask him to show off all his aliens' different moves so they can be implemented into the game. In reality, TV reporter Will Harangue has been using the video game to build a giant spider-like robot that knows all of Ben's aliens' moves from when he openly showed them. After being defeated twice by Harangue's robot, he challenges Ben to a final showdown on live TV. After rea

In the Himalayas, Dr. Animo and his mind-controlled Yeti were fighting with Ben. Ben, as Brainstorm, mind-controls the Yeti and frees him. Kevin and Gwen deactivates the Devalution bomb. Gwen calls the Plumbers to take them, the Plumbers informed them that there is an alien action in Bellwood. Ben encounters the turtle-like alien Galapagus, who was on a rampage to find Ben. He escaped from Aggregor and tells Ben how he ended up captured alongside four other aliens in a plot to permanently absorb

Eager to escape his containment suit, P'andor (one of the aliens who were captured by Aggregor) offers a huge cash reward to anyone who can break him out of it. Everyone who tries to break the suit ranging from Buzz, Hammer, and Surgeon fails, save for Kevin, who uses a piece of Taednite to pierce it. But, when Kevin's Plumber's badge senses that the contents of P'andor's suit are radioactive, he stops trying to open it. Enraged, P'andor then offers Buzz, Hammer, and Surgeon an even bigger rewar

When Ben, Kevin, and Gwen investigate an odd string of thefts by the Forever Knights, they learn that Argit is using Andreas (one of the aliens being hunted by Aggregor) to frighten them into making him their leader. Argit's plans go bad when the Forever Knights eventually revolt, and throw him into a dungeon with Ben and the others. When they discover that the Knights plan to execute Andreas, they break out and save him. But when a Forever Knight sets a bomb that would level the entire castle,

After ambushing Ben at his house, Ra'ad (one of the aliens captured by Aggregor) blames him for letting Aggregor recapture the other four aliens through the Ultimatrix. While trying to resist being scanned by the Ultimatrix with his electric powers, Ra'ad causes it to malfunction, and ends up deactivating it while both his and Ben consciousnesses trapped within his body. Despite Ra'ad's protests, Gwen and Kevin reactivate the Ultimatrix, and separate Ben from the alien. But in doing so, they ale

Ben meets his favorite superhero idol Captain Nemesis when he shows up to save actress Jennifer Nocturne, however Captain Nemesis is displeased when Ben gets kissed by the actress instead of him. Captain Nemesis' assistant, Simons meets up with Will Harangue about staging an event that will put Captain Nemesis back on the front page of each magazine. When Ben wins, The Captain goes to extreme lengths to prove everyone that he is the best superhero of all time. He captures Julie and Jennifer and

With all five aliens in his possession, Aggregor tries to return home to absorb their powers. A Plumber ambush damages his ship, so he instead heads for Los Soledad, in order to use Prof. Paradox's time machine as an alternate power source. Despite Ben, Kevin, Gwen, and Grandpa Max's best efforts, Aggregor succeeds in absorbing the aliens' forms and powers, turning himself into an unstoppable amalgam of the five.

With his new powers, Aggregor easily defeats Ben and his friends. Azmuth tells Ben that Aggregor intends to steal the Map of Infinity, a complete map of the entire universe. With it, he'll be able to find the Forge of Creation, the birthplace of the universe. He further explains that Aggregor stole the five aliens' powers to protect him from the traps guarding the map, which is split into four pieces. In order to keep him from assembling the map, the team tries to take one of the pieces first. A

After "helping" Ben, Gwen, and Kevin stop the Forever Knights, Cash and JT start a TV show with Oliver as their cameraman. Ben, Gwen, and Kevin play along for awhile. Upon tracking the Forever Knight, Ben, Gwen, and Kevin learn what the Power Decoupler is being used by the Forever Knights and attacks them with some interference from Cash and JT. Afterwards, Psyphon shows up to attack Cash and JT after seeing the broadcast of them taking the credit for given Ben his battle tactics. After Psyphon

Ben, Gwen, and Kevin travel to the center of a water planet, namely Pisces, Ripjaws' home planet in an attempt to find Aggregor. They end up getting help from Magister Pyke, one of Ripjaws' species. The planet has a 2% solid core, which holds an instrument that holds the planet's water together in a gravitational pull. Aggregor takes the instrument and reveals it to be a piece of The Map of Infinity. As the planet is pulling apart, Aggregor escapes. Ben transforms into Goop and uses Goop's anti-

Gwen, Ben, and Kevin follow Aggregor into a mystical dimension called Legerdomain with the help of Charmcaster, who was born there. They believe Aggregor's target to be the Alpha Rune worn around Addwaitya's neck, which they suspect is a disguised piece of the Map of Infinity. Gwen and Charmcaster work together several times, and the two develop a bond that seems to lead to Charmcaster changing her ways. While the group tries to steal the Alpha Rune, Aggregor uses the distraction to knock Addwai

With the fourth piece of the Map of Infinity almost in Aggregor's clutches, the gang chase him through the artificial planetoid known as Perplexahedron.

Azmuth is upset with Ben, Gwen, and Kevin for letting Aggregor get all the pieces of the Map of Infinity. Ben resolves to become Alien X to get Bellicus and Serena to cooperate. When this fails, Paradox arrives and changes Alien X back to Ben. After a brief argument, Paradox and Azmuth explain that the Forge of Creation is where all Celestialsapiens (Alien X's race) are born, and Aggregor hopes to absorb the powers of a newborn Celestialsapien and become all-powerful. Paradox takes them to the F

With Kevin having absorbed Ben's aliens and become insane once again, Ben and Gwen have to go to the null void prison in an attempt to stop Kevin from destroying all the people there. We learn more about how Kevin got his material absorbing powers. In the end Ben thinks Kevin should be put down.

When Argit and the Vreedle Brothers team up, they come up with a plan to attack the Plumber Academy.

When Ben and Gwen are faced with an unexpected enemy, Gwen turns to Darkstar for help.

Ben and Gwen are forced to go to Darkstar for help when they come across their most deadly, most unexpected foe yet.