Watch Ben 10: Alien Force - Ben 10 Returns (1)

Ben 10: Alien Force Season 1 Episode 1

Season 1 Episode 1

First Aired: April 18, 2008

Description: When Grandpa Max is discovered to be missing, Ben sets out with Gwen and Kevin 11 to find him. While on their search they uncover a secret weapons trade which is being held between two alien groups.