The girls decide that they want to be away from each other, so they ask Ug to change the bunk assignments. Meanwhile, the boys find a buffalo skull in a cave near camp. After they bring it back bad things start to happen and Ug orders them to bring good luck back to camp by returning the skull. Budnick decides to start a ""caveman club"" for the boys. The girls decide to steal the skull from them and get caught in the cave during a storm.