(7/2/1951) Season 3, Episode 45. A car carrying three people (Kent Smith, Philip Bourneuf, and Joan Wetmore) swerves off a cliff and into a mysterious valley where they encounter a prehistoric caveman (Kurt Katch). Kent Smith, Philip Bourneuf, Joan Wetmore, Kurt Katch, Frank Gallop (Narrator), Director: Laurence Schwab, Jr.