Hal, Ed, and Gail plunge to the lowest depths of the ocean in a special crystal bell to plant a second seismographic signaling device after the first one mysteriously disappears.
Released: Jan 01, 1970
Runtime: 00:20:30 minutes
Genre: Sci-Fi & Fantasy, Animation, Family, Kids
Stars: Pamelyn Ferdin, John Stephenson, Jerry Dexter, Ann Jillian, Ross Martin, Josh Albee, William Callaway