Mystery of the Riverboat

Only Episode 7, "The Hooded Helper," of this 20-Episode Serial is known to survive. All other episodes are believed to be lost.

Dick Tracy battles spies and saboteurs in his efforts to bring to justice the Stark gang, a criminal family led by the vicious Pa Stark.

Two marine lieutenants battle a masked would-be world conqueror who uses electricity as a weapon.

Wealthy Irving Randolph is falsely denounced as a deliberate murderer by his greedy younger brother when Randolph, during a rifle shooting contest,...

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

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

The story of a boy, a dog, and a man. The boy discovers he is heir to a shipping line, and travels to Los Angeles, accompanied by inventor/radio...

Sergeant MacLane of the Mounties investigates the disruptive activities of a bunch of troublemakers.

A bunch of waterfront youths pursue the Sea Raiders, a gang of saboteurs.

An Indian rug is the key to the location of a lost treasure. When the rug's owner is murdered, it becomes a case for Forest Ranger Steve King

The Phantom Rider helps Mary Grayson thwart a plot to steal her land.

A new town doctor arrives at the same time as local Indians needprotection from troublemaking looters.