Vendetta

A deadly criminal known as "Ragnarok" breaks out of the Null Void, and begins a search for a mysterious key. Meanwhile, Kevin returns home to find his house ransacked with his mom, who confesses the truth about Ragnarok. Kevin then asks Ben and Gwen if they know anything about Ragnarok, and when they tell him they don't. He tells them to stay out of the situation. The two, now concerned, ask Grandpa Max if he knows anything about the escape. He confesses to having a partner named Devin, who risked his life to stop Ragnarok several years ago. His partner's full name was none other than Devin Levin, Kevin's father. Ben and Gwen track Kevin with his Plumber's badge and together, they force Ragnarok to flee. Gwen then helps Kevin find the "key" which is revealed to be disguised as a picture frame of a younger Kevin and his father, but Ragnarok steals it, then teleports to his ship called "the Harvester".. Ben, Gwen, and Kevin manage to transport themselves via the same signal, but before they find Ragnarok, Kevin tricks the other two to get into an escape pod. With Ben and Gwen descending down to Earth, Kevin can now exact his vengeance without interference. He and Ragnarok battle, while Kevin causes the entire ship to destabilize into a vortex. Ragnarok begs Kevin to save him, stating that his father would too. Despite his desperation, Kevin merely takes his key and deliberately allows him to get sucked into the vortex. Ragnarok's ship explodes. Ben and Gwen see the explosion from the ground and think Kevin is dead but Ben turns around when he hears Kevin and they notice that he survived the explosion. Kevin then walks home after mentioning that Ragnarok is dead, but he will be returned.

Ben Tennyson, Kevin Levin, Gwen Tennyson, Raff, Sevenseven, Bandaged Warrior, Serena, Attea, Emperor Milleous, Bellicus, Attendants, Warriors

Talk about multiple personalities.... It's been five years since Ben last used the Omnitrix, but when Grandpa Max disappears, Ben must go hero again! Ben Tennyson was your everyday, average kid until he discovered a mysterious watch hidden in a meteorite that crashed on Earth. He soon learned that the supernatural watch allows him to transform into 10 different alien beings while keeping his kid personality. Now 15 as he again dons the Omnitrix to battle new enemies, he morphs into new alien life forms and discovers different powers and abilities.