A.T.O.M.: Alpha Teens on Machines

After inadvertently stumbling on Paine's underground base, the team discovers evidence for his new evil plan to flood their city with lava, forcing the teens to address the potential mass devastation before getting back to the Earth's surface. They discover that Paine has forced another one of the Team's former villains to cooperate in his plan by turning him into a giant concrete man, effectively making him the only living creature capable of withstanding the heat in the volcano and initiating the evil plan. Realizing that participating in Paine's evil plan will both free his mother from Paine's capture and enact revenge on Lioness for breaking his heart prior.