Ben may think he has grown up with new alien heroes like Shocksquatch and Bloxx ready for battle, but this superhero teen is definitely not out on his own. The Plumbers have recruited a new partner for him – Rook. He’s no-nonsense in every way. Meaning he has yet to understand Ben’s uh… “sense of humor.” But Rook is some excellent backup. And Ben is going to need all the help he can get what with Khyber the Hunter hot on his intergalactic tail.

 AnimeRulz is the best site to watch ben 10 omniverse season 04 SUB and DUB in HD quality.