Mxyzptlk's Revenge / Roller Coaster / Once Upon a Poltergeist

Drawn into Mxyzptlk's dimension, Batman and Superman must find a way to escape in "Mxyzptlk's Revenge." Next, the Wondertwins and Atom rescue a teen gang from a deadly ride on a condemned "Rollercoaster." Finally, Apache Chief helps the spirit of an Indian find his final resting place in "Once Upon A Poltergeist."