The story starts as Vilgax invades earth with a gigantic Null Void projector. The combined forces of the Null Void's prisoners and Vilgax's forces are too much for Ben, Kevin, and Gwen to handle. Ben proceeds to transform into Alien X but Paradox tells him not to use Alien X yet. And to make matters worse, some of Ben's alien forms become unacceptable after too many quick transformations after a fight with Mr. Smoothie. To help save the earth, Professor Paradox sends the trio back in time in order to stop Vilgax from collecting a power source for his Null Void projector. With help from Grandpa Max and Ship, Ben and company travel throughout the galaxy to foil Vilgax's evil plan before it can come to fruition.
- Ben 10: Protector of Earth
- Ben 10: Alien Force (video game)
- Ben 10 Alien Force: The Rise of Hex
- Ben 10 Ultimate Alien: Cosmic Destruction
- Ben 10
- Ben 10: Alien Force
- Ben 10: Ultimate Alien