While taking the Howells for a drive, Gilligan discovers a head hunter totem pole with a replica of his head on it. Later the castaways are taken prisoner and Gilligan has to save them.

Gilligan discovers an incomplete stone tablet with hieroglyphics on it. The Professor interprets the markings to be a map of how to get off the island. The castaways then search all the caves on the island for the missing pieces of the tablet.