Superman and Batman are pulled into a space warp where they come across a strange planet inhabited by aliens known as Zoons. The leader of the group, Super Frog, plans on keeping who he sees as invaders as prisoners. He then turns Superman into an eagle and Batman into a real bat. The aliens' headquarters is referred to as the Hall of Zoon. Fortunately Batman and Superman are able to warp into their own galaxy and the effects wear off...Batman remarks that Superman would have made a great eagle.