Stingray

The Cool Cave Man (1x18)

Air date: Jan 31, 1965

While trying to decide what to wear to Atlanta's fancy dress ball, Troy falls asleep and dreams that he and Phones are pitted against a race of underwater cavemen who plunder the cargo of a vessel varrying radioactive material. Troy awakens from his adventure, inspired to wear a caveman outfit to the ball - as, in fact, does everyone else!