The FBI

Inspector Erskine enters a high stakes card game to trap a Mafia criminal, not knowing the Mafia plan to kill everyone at the game.

Posing as a Communist courier, Inspector Erskine ferrets out an espionage leader, only to learn he is to kill the man.

Inspector Erskine and Agent Colby must locate a woman's hideout cabin before she becomes the victim of an acid thrower.

Inspector Erskine, posing as a Communist courier, uncovers a plot to steal secret missile data.

Inspector Erskine connects the kidnapping of a teenage boy to a super heist planned by his long-missing father.

Trailing the kidnappers of a teenage boy, Inspector Erskine uncovers plans for a $3,000,000 robbery by the boy's father.

Inspector Erskine must rescue the wife of a defecting Communist General before her American Red captors induce him to change his mind.

A city's electrical blackout puts a protective cloak over a would-be murderer and unexpected difficulties in the path of FBI pursuers.

Inspector Erskine and Agent Colby track down and capture one of the 10 most wanted criminals.

Inspector Erskine and Agent Colby shatter the romance of a Communist agent and a lonely government secretary, but she has already given him top secret information.

Inspector Erskine suspects a case of mistaken identity in a Virginia bank heist.

Quicksand, a death-infested swamp and a stubborn backwoods town protect an escaped killer from Inspector Erskine and Special Agent Colby.

A millionaire refuses to pay the ransom for his kidnapped brother, forcing the FBI to move fast to save the victim's life.

A "long lost daughter" unwittingly helps the FBI unmask a Communist spy who has assumed the identity of a dead American.

Two murders, ten years apart, are linked by Inspector Erskine, giving him clues to solving both.

An unsolved murder ignites into riot a town's hatred for a nearby job trainee camp.

The suspicious death of a race driver puts Inspector Erskine on the trail of a stolen car ring.

A scientist defector returns to New York in secret and the FBI's assistant director Ward personally handles the case.

Inspector Erskine and the husband of an extortion victim race to seize the extortionist first.

Inspector Erskine sends a secret radio directive to a kidnapped woman to aid her rescue.

The FBI and an underworld gunman both try to catch up with a bank embezzler who's fled to Puerto Rico.

The FBI's Erskine hunts for a $2,000,000 treasure and the armored car robbers who buried it.

Inspector Erskine races a time bomb for the life of a kidnapped youth.

Inspector Erskine holds off at gunpoint the crew of a gambling ship.

Inspector Erskine interrupts a robbery ring's plan to tunnel into a New York bank vault.

Inspector Erskine uncovers a Communist spy whose pretty wife is the lure in blackmailing top secrets.