With Vilgax defeated and Ben retired as the hero of Earth, Grandpa Max takes in a new class of young Plumbers’ helpers to turn into the next generation of Earth’s mightiest heroes. As Rook is trained to become a Plumber along with his sister Shar and a group of other half-alien teens, they suddenly are thrown into fighting the deranged Galvanic Mechamorph Malware and his allies, the return of Servantis and the Rooters, the invading Incursean armada, and other alien criminals & villains, all while Max looks back on his past as he crosses paths with a repentant Phil Billings. (spinoff of my animated Ben 10 trilogy)
