Chaos erupts at the carnival in Metropolis when Beppo the Super-Monkey arrives and eagerly indulges in his favorite treats—especially chocolate-covered bananas. But his fun is threatened when the evil brain of Gorila Grodd hatches a sinister plan to turn the festival into a scene of destruction. With help from the Wonder Twins and their space chimp, Gleek, Beppo must fight through the pandemonium and stop Grodd’s plot before the carnival is ruined and Metropolis falls under the chaos of “monkey madness.”