This is the only Bulldog Drummond film to star the fabulous Ray Milland as our heroic adventurer who must once more try to rescue his kidnapped fiancee, Phyllis Clavering (Heather Angel). She is being held prisoner on a country estate by a supposed friend who is scheming to steal her fortune. When her brother is killed, the perpetrators then stalk Bulldog and his pal Algy Longworth (Reginald Denny). Bulldog must face his greatest challenge before the mystery is unraveled with the help of Scotland Yard.