Hugh “Bulldog” Drummond is on the precipice of matrimony to his beloved Phyllis -- but a bank robbery and a daring escape is going to get in their way before they reach the altar.

Drummond's wedding with Phyllis is interrupted when the inspector guarding their gifts is killed. He tries to trace the killers and uncovers the mystery of diamond counterfeiters.

Rural Mississippi in the 1940s: Lucas Beauchamp, a local black man with a reputation of not kowtowing to whites, is found standing over the body of a dead white man, holding a pistol that has recently been fired. Quickly arrested for murder and jailed, Beauchamp insists he's innocent and asks the town's most prominent lawyer, Gavin Stevens, to defend him, but Stevens refuses. When a local boy whom Beauchamp has helped in the past and who believes him to be innocent hears talk of a mob taking Beauchamp out of jail and lynching him, he pleads with Stevens to defend Beauchamp at trial and prove his innocence.

Anne Crandall is the mayor of a small town in Vermont. Her deceased husband had been the mayor for years and when he died, she was left to carry on and to raise his daughter from his first marriage. She lives with the daughter, her father-in-law and a housekeeper. In the town square, there was a statue of her late husband and every year since his death, they have an anniversary celebration there. This year during a thunderstorm, the statue is hit by lightning and the head falls off. The daughter insists that a new statue be erected instead of patching the old one. Mayor Crandall is sent to New York to interview the prospective sculptor, George Corday.