A "Mandroid" was constructed by malevolent scientist Abbot Reeves out of the dead body of a downed pilot. After the Mandroid returns from a scouting mission, Reeves gives the orders to have him destroyed. Reeves' assistant Takada attempts to help the Mandroid escape and is killed in the process, but before he dies, he tells the Mandoid that Reeves is working on an evil plan. The Mandroid contacts scientist Nora Hunter and together they work to stop Reeves.
Andrew Prine, Denise Crosby, Patrick Reynolds, Conan Lee, Roy Dotrice, Peter Schrum, Peggy Mannix, Fausto Bara, Tad Horino, Luis Lorenzo, Pepe Moreno, Miguel DeGrandy, Gabino Diego Solis, Carlos Bravo