Simple

After receiving a message from a five-year-old alien named Probity, Ben convinces Kevin and Gwen to help end a war on the child's home planet. The two sides are bent on war, however; even kidnapping and threatening the respective generals, who are themselves too stubborn to reach an agreement, fails. Ben transforms into Way Big so he may speak to the entire planet at once, but inadvertently worsens the situation when he accidentally destroys the planet's hero's statue. This ironically unites the entire planet in its hate for Ben. Meanwhile, Kevin who has been selling weapons to either side, along with Argit, decides to run with the profits he has made but is instead forced to leave the money behind. The money is discovered by Probity (who was dissatisfied with Ben's attempts to stop the war, her initial admiration turning into hatred).

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.