The Capricorn Kid and his Robot Gang capture Zan and Jayna at the Hall of Justice. They take the Wonder Twins to an Old West Themed planet and put them tied up into a well filling in water. The Super Friend arrive on the planet and split up to search for the teens before it is too late. Aquaman is captured when he is stuck in the mud and trapped by an earth moving machine. Wonder Woman finds one of the robot cowboys at an old rig, and captures him with her magic lasso, but the robot horse has paralysis beam eyes and Wonder Woman is made helpless. Superman is lured to a cabin by a of robot cowboys on flying robot horseback, and tunnels into the cabin and seize the pair, but is quickly imprisoned in a kryptonite cell. Batman and Robin rescue the Wonder Teens, but learning that the other Super Friends have been captured go off to save them. Batman saves Aquaman from a paddle wheeler that is about to go over a waterfall, and then saves a kryptonite chained Superman from a train about to cross a destroyed bridge. Robin saves a titanium rope bound Wonder Woman from a stage coach as it's about to go over a cliff. Batman then faces the Capricorn Kid and proves he is faster when he uses a Batlaser to shoot the gun out of his hand.