"Bulldog" Drummond is vacationing in his country home in England, and his house if rifled by two thieves. After they leave he finds a card marked with some mysterious letters. Doris Meredith comes by the next day, pretending her car has broken down. Drummond knows better but plays along with her. Drummond calls Scotland Yard Inspector Holmes, and is informed that some of the letters comprise the code-name for a Yard-man who disappeared while carrying some diamonds from France to England. Doris tells Drummond the man is her brother. Drummond uses a decoy to lure the thieves out of hiding, but they adduct Doris.

Bulldog Drummond goes up against foreign agents trying to steal plans for a top-secret aircraft.

一位英国一战老兵将自己塑造成了一位十足的动作英雄。

A captain saves a kidnapped magnate from a nursing home run by foreign agents.

The invention of a machine that can cause remote explosions brings the attention of Scotland Yard and Bulldog Drummond.

Bulldog Drummond leaves retirement to help a Scotland Yard Sergeant catch thieves armed with radar.

A Scotland Yard Inspector, seeking a missing heiress, is murdered in his own home. "Bulldog" Drummond finds one of the two women claiming to be the real heiress hiding in a closet in the house. She tells Drummond she is innocent of the murder and is the real heiress. Is she or isn`t she?

Drummond has to leave for Morocco on his wedding day with his fiancee and trusted friends to rescue his friend Nielsen who is kidnapped by an international criminal.

Merchants hire a foreign criminal to kidnap a scientist for the secret of manufacturing diamonds.

Captain Drummond and his girlfriend want to marry but a hidden treasure in the house in which they want to celebrate their marriage is complicating the situation involving a series of deaths and an elusive murderer.