A supercomputer plans world domination with the help of Robby the Robot and a 10 year old boy, who is the son of the computer's inventor.

Richard Eyer
as Timmie Merrinoe

Philip Abbott
as Dr. Tom Merrinoe

Diane Brewster
as Mary Merrinoe

Harold J. Stone
as Gen. Swayne

Robert H. Harris
as Prof. Frank Allerton

Dennis McCarthy
as Col. Macklin

Alexander Lockwood
as Arthur Kelvaney

John O'Malley
as Prof. Baine

Gage Clarke
as Dr. Bannerman

Than Wyenn
as Prof. Zeller