Injured scientist Eric Godfrey asks his protege to give him a fatal dose of opiates to end his misery. When he dies the doctor is accused of murder.

A Capone-like racketeer named Anderson, who after being chased out of one town by the authorities immediately sets up shop in another. Unable to get any tangible evidence against Anderson, DA Wayne orders his assistant Carter to dig up some dirt on the gangster boss. To do this, Carter pretends to turned crooked, joining Anderson's gang in order to accumulate evidence. Alas, Carter's girl friend Patricia knows nothing of her boyfriend's subterfuge, and she suspects the worst.

Racketeer Jim Barnes is trying to force the independent taxicab-drivers to join his "protection service" at the cost of five bucks a day. Champion race-car driver, Bob Kane, joins with his friends Lee and "Dad" Martin in a fight for the street rights of a big city.

Saving a dog from the pound gets a man mixed up in murder.

Scotland Yard cop goes undercover to nab counterfeiter and his gang.

A crusading newspaper reporter battles big-city gambling interests.

A gritty crime story involving a newspaper man and crooked politicians.

Annie (Ann Gillis), an orphan, (based on Harold Gray's comic strip but who is at no point in the film called 'Little Orphan Annie), is befriended by a fight manager, 'Pop' Corrigan (J. Farrell MacDonald). She brings him Johnny Adams (Robert Kent), a promising prizefighter. Annie gets the people of the neighborhood to finance his training. But on the night of Johnny's big fight, a gambling syndicate locks him in a gymnasium and it appears the neighborhood folks will lose their investment.

On parole after three years in prison, a football player encounters the man who framed him.

A private eye is hired by a mayoral candidate to prevent any sort of adverse publicity. It seems that, somewhere in town, there's a talking blackbird who insists upon saying that the candidate will commit a murder. When the killing occurs, the candidate is implicated, and the detective is off on a hectic pursuit of the incriminating crow and the actual murderer.

A chorus girl's career is ruined and her brother is driven to suicide when she starts smoking marijuana.