Ben 10: Ultimate Alien

Watch Ben 10: Ultimate Alien series online. 16-year-old Ben Tennyson is an internationally-known super hero to kids, and distrusted by adults. Armed with a mysterious new Omnitrix, Ben is ready for action in a whole set of new places. With his secret identity now revealed to the world, Ben Tennyson continues to fight evil as a superhero with the help of the newly acquired Ultimatrix. Watch series online free.