A scientist uses an earthquake machine to threaten the city, and only Superman can stop his extortion plan!

The story of a platoon during the Korean War. One by one, Corporal Denno’s superiors are killed until it comes to the point where he must try to take command…

When legendary hunter Bob Rainsford is shipwrecked on the perilous reefs surrounding a mysterious island, he finds himself the guest of the reclusive and eccentric Count Zaroff. While he is…

A sailor gets his boat stolen from him after he’s set up for a crime.

A tribe devoted to the leopard cult is dedicated to preventing civilization from moving further into Africa.

The just-out-of-college, effete son of a no-nonsense steamboat captain comes to visit his father whom he’s not seen since he was a child.

Congo Bill is hired to locate an heiress lost somewhere in Africa.

An escaped criminal impersonates a Police Commissioner, causing no end of trouble to a determined Federal Agent.

Christopher Columbus overcomes intrigue at the Spanish court and convinces Queen Isabella that his plan to reach the East by sailing west is practical.

A young woman turns to Holmes for protection when she’s menaced by an escaped killer seeking missing treasure. However, when the woman is kidnapped, Holmes and Watson must penetrate the…

Gridley is mining silver from an old Mexican mine and bringing it into the USA thru a passage into his worthless mine. Border guard Rogers suspects Gridley and finally finds…

Jim Dorn endeavors to protect Jean McNain from a man she knows has committed a murder, Carter Snowden