Grape Ape starts sleepwalking, and unconsciously starts performing great acrobatic feats all around the city. He is soon hired to perform the greatest stunt of all: cross the Grand Canyon on a thin wire. The only problem is, that while he's awake, he's scared of heights. / Grape Ape competes in the Summer Olympic Games for the US team, against Evilonia's robot, who is decided to win, even if he has to cheat to do it.