The new Bakugan Battle Brawlers are a group of Vestals and Humans who are the heroes of New Vestoria. They are trying to save the Bakugan and destroy all three dimension controllers that make the Bakugan helpless to the evil Vexos. If the Battle Brawlers can do this, they will free the trapped Bakugan and destroy Vexos.
When 10-year-old Ben Tennyson discovers a mysterious watch, he gains the power to transform into a number of different aliens, each with awesome powers. Ben realises that he must use these powers to help others and stop evildoers, but that doesn't mean he's above a little super powered mischief now and then.
Ten-year-old Ben Tennyson is finally back from his summer vacation… and his life is mess! Humiliated by his teacher, harassed by bullies, grounded by his parents, and cursed with a malfunctioning Omnitrix that's vaporizing his homework, Ben seizes an opportunity to “get away from it all” by exploring the galaxy with his alien buddy Tetrax. However, he quickly finds himself crashing back to Earth in alien form and unable to turn human again!
Beating the bad guys is just part of the superhero gig. With a little help from his new, by-the-book rookie partner, Ben explores the quirkier side of things in the alien underground and discovers enemies from his past looking for a re-match, all while a mysterious hunter is hot on his trail! With 10 new aliens at his disposal and a brand new lease on life, Ben 10 is back and more fun than ever!
Ben 10: Ultimate Alien follows 16-year-old Ben Tennyson as his life changes in major ways. His secret identity has been revealed and he’s now an international mega-star super hero. Armed with a mysterious new Ultimatrix, Ben is able to transform into ultimate versions of his aliens and will see action in places he’s never been.