Ben 10 vs. The Negative 10: Part 2
Ben, Gwen, and Max, along with Cooper, use the Plumbers’ Mount Rushmore installation to mount a final stand against the Forever King’s forces. Max discovers that the Forever King was once a plumber named Driscoll who was kicked out after hoarding alien technology. Despite their best efforts, they are unable to keep Driscoll from obtaining the Sub-Energy. Driscoll uses the sub-energy to tremendously increase his armored suit and battles Ben, who is able to use Upchuck to digest the power source and destroy it safely.