A movie serial in 12 Chapters: US naval officer Don Winslow is given command of Tangita Island, near Pearl Harbor, where a ring of saboteurs is trying to destroy ships carrying supplies to the troops stationed in the islands and sabotage the war effort under orders from an unknown leader.

With Britain on the brink of war, an enemy spy plans to steal secret documents and lay the blame on Clive Stanton.

The story of Speed Brennan`s bid for fame and fortune when he helps to invent a torpedo-carrying seaplane, and quickly learns that he is playing with death itself at three-hundred-miles per hour.

A runaway boy pretends to be the son of a Navy man, only to turn both their lives upside down.

Jerry tries to out compete his older brother Cass, a lieutenant Naval aviator. Cass is both tough on and protective of his brother, but Jerry can give it right back.

A spy has his son steal an Admiral's submarine plans.

The term at Osborne Naval College is not yet over. Why, therefore, has cadet Ronnie Winslow returned home? And why, moreover, is he hiding in the garden in the rain?

Arthur Winslow is prepared to risk everything to clear his son of a charge of theft.

In pre-WW1 England, a youngster is expelled from a naval academy over a petty theft, but his parents raise a political furor by demanding a trial.

A young naval cadet is expelled for stealing. This will disgrace him for life in Edwardian England unless his family can clear his name. Based on true events.