Being powered up for six months, Rusty has not grown an inch. Frustrated that he will never be as big as The Big Guy, he connects his robot head on the powerful robot body of Quark's T-7000 Prototype. But he learns there's more to crime-fighting than just being big when a gang of exosuit-wearing chopshoppers (Gage, Big Rig, and Cargo) lure him into an ambush.