A struggling lawyer is named as special prosecutor in a racketeering case.

G-Man Bill Collins swings into action when a crooked sweepstakes racket begins insinuating itself upon the honest citizenry of the US. The crooks have flooded the market with counterfeit lottery tickets, reducing many an unwary speculator to poverty.

A newspaper publisher and his Korean servant fight crime as vigilantes who pose as a notorious masked gangster and his aide.

A group of pilots, because of unsavory or unearned reputations, establish an outpost squadron of their own, led by "Loop" Gillian, running charter-flights and hauling supplies in the frozen wastelands of Alaska. The operation does not go without misadventures, foul-ups, and a bit of treachery tossed in.

University professor George Kingsley is struck by gangsters while crossing the street, leaving him with brain damage and one of the gangsters, Cannon, paralyzed. Kingsley's friend Dr. Sovac attends to both men, and when Cannon offers him a reward for aiding his recovery, Kovac transplants part of Cannon's brain into the dying Kingsley's skull, creating a dual personality.

University professor George Kingsley is struck by gangsters while crossing the street, leaving him with brain damage and one of the gangsters, Cannon, paralyzed. Kingsley's friend Dr. Sovac attends to both men, and when Cannon offers him a reward for aiding his recovery, Kovac transplants part of Cannon's brain into the dying Kingsley's skull, creating a dual personality.

When gangster Phil Daley gets rid of his chief Paul Burgess he has everything that money can buy, except the respect of his parents and his sweetheart Susan Warren. His younger brother Danny quits college and forces Phil to make him part of the gang. The overly-ambitious Danny fixes a prize-fight on which rival gang-leader Mike Luger loses heavily and, thinking that Phil has double-crossed him, sends gunmen out to kill Phil. They kill Danny instead and the frightened Phil flees to a country hideout. His chief lieutenant, Sid Travis, sets a trap for Phil when he returns.

A cabbie and petty thief dreams of the big heist that will end his thieving ways.

Edmund Lowe plays an insurance investigator who interrupts his honeymoon to look into the case of a murder, which could also be a suicide, in which case his company won't have to pay the victim's contract. His wife, played by Margaret Lindsay, insists on following him around, not only to help him solve the case, but to make sure he doesn't get too friendly with any members of the opposite sex, either.

When a night watchman is mistaken for a wealthy college alumnus, his family and friends help him go along with the pretense.