Captain Hugh C."Bulldog" Drummond (John Howard) and his ever-loving and patient fiancée, Phyllis Clavering (Heather Angel). are about to wed but he becomes involved in a plot to steal an atomic disintegrator with a range of half a mile. Madman Rolf Alferson (George Zucco) has control of the weapon but Drummond is suspected of the theft and follows the clues to an island colony.
Arrest Bulldog Drummond
The invention of a war machine, that brings to explosion everything one wants to, puts Scotland Yard and Captain Drummond into alarm.