Mandrake and his assistant Lothar are working the cruise lines and make the acquaintance of Professor Houston who has developed a radium energy machine, which is much coveted by a masked Crime Lord known as "The Wasp".

A horse and the boy who loved him.

This show featured four rotating stars, Charles Boyer, David Niven, Ida Lupino, and Dick Powell in individual episodes consisting of everything from comedy to drama.

From his secret laboratory, Captain Z-Ro and his associates use their time machine, the ZX-99, to learn from the past and plan for the future.