Murders, with victims dying from spines broken by brute strength, erupt in the city and the killers, when encountered, walk away unharmed by police bullets which strike them. A police doctor's investigation of the deaths leads to the discovery of an army of dead criminal musclemen restored to life, remotely controlled by a vengeful former crime boss and a former Nazi scientist, from the latter's laboratory hidden in the suburbs.

Richard Dadier is a teacher at North Manual High School, an inner-city school where many of the pupils frequently engage in anti-social behavior. Dadier makes various attempts to engage the students' interest in education, challenging both the school staff and the pupils. He is subjected to violence as well as duplicitous schemes.

Paris-based New York Herald Tribune reporter Jimmy Race (Andrews) is sent by his boss (Sanders) behind the Iron Curtain in Budapest to investigate a meeting involving the Hungarian ambassador.

A psychologist takes on the daunting task of getting into the mind of prisoners. He must gain the trust and cooperation from a group of men who have no reason to help him and who might enjoy killing him.

A soldier blinded in war returns home and attempts to adjust to civilian life.

Posing as an ex-German medical officer, a U. S. Navy Intelligence Officer sets out to rescue a kidnapped scientist, and sink a Nazi submarine, hiding off the coast of South America.

A government agent travels from the United States to Mexico to nab drug dealers.

Phyllis Wilson (Laura Lee) returns to the lumber camp owned by her father, Henry Wilson (Sam Flint)), and finds him in a struggle to keep his holdings. Wilson's foreman, McCabe (George Slocum), is employed by Wilson's enemy to destroy his company. Jim Caldwell (David Bruce), an engineer, is hired by Wilson and falls in love with Phyllis. McCabe kills Wilson and Sheriff Williams (Lee Phelps) thinks Caldwell is the killer.