Bulldog Drummond (Ronald Colman)

Hugh 'Bulldog' Drummond is a British WWI veteran who longs for some excitement after he returns to the humdrum existence of civilian life. He gets what he's looking for when a girl requests his help in freeing her uncle from a nursing home. She believes the home is just a front and that her uncle is really being held captive while the culprits try to extort his fortune from him.

Algy, Bulldog Drummond's right-hand-man, is getting married. Bulldog attends; on the way home, in the fog, he enters the (apparently deserted) mansion of Prince Achmed in search of a phone. He finds none, but he does find a body - which disappears when he summons a bobby. Bodies keep disappearing as Drummond keeps summoning the authorities, particularly his long-suffering upstairs neighbor, Captain Nielsen; the ever faithful Algy also finds his wedding night disrupted by, among other things, some emergency code-breaking. And of course, there's a beautiful woman (there's always a beautiful woman in the case), Lola, who turns out to be the daughter of the dead man who started all this.

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

Drummond leads a black-shirted platoon of men from his former unit against foreign interlopers trying to pull England into dangerous overseas entanglements.