Ben 10

S04:E08 - Ben 10 vs. the Negative Ten (Pt. 1)

Ben, Max Ben and Gwen investigate a couple of daring break-ins, only to discover they were once both secret Plumber installations. The heroes discover that those responsible for the break-ins are working for The Forever King. He's brought together a rogue's gallery of some of Ben's most notorious enemies to eventually steal the world's most powerful energy source ¿ located deep inside the Plumber bunker at Mount Rushmore. Part one of a two-part series