Gilligan's Island S03E25 - The Secret of Gilligan's Island
Gilligan's Island (1964)
S03E25 The Secret of Gilligan's Island
Episode Overview
Gilligan stumbles upon some old stone tablets, which the Professor believes might hold the key to their escape from the island. Later that evening, Gilligan has a dream where he imagines himself as a caveman, carving out a tale on a stone tablet from three million years in the past.