Bulldog Drummond

Captain Drummond travels to Switzerland in order to marry his girlfriend but the disappearance of a dangerous cargo of explosives makes him delay his plans.

The intended wedding of Captain Hugh "Bulldog" Drummond to Phyllis Clavering at her villa in Switzerland is stopped short (once again) when someone murders the Swiss policeman who is guarding their wedding presents. The killer makes off with their prize possession, a synthetic diamond, made by a secret process by Professor Bernard Goodman , the father of their good friend Gwen Longworth. A guest, Sir Raymond Blantyre, head of the Metropolitan Diamond Syndicate, disappears at the same time, and Drummond suspects that Sir Raymond, who has the most to lose if Professor Goodman proceeds with his plans to publish his secret process, has something to do with the theft. He leaves Phyllis and chases back to England. Colonel Nielsen, of Scotland Yard, as usual scoffs at Drummond's suspicions and insists that a man as respected as Sir Raymond could not possibly be involved in such a crime. But, as usual, he has Drummond followed just in the event he turns up something unexpected. An explosion that wrecks Goodman's house, and apparently kills him, makes Drummond more positive that the diamond king has again resorted to murder to protect his business. He follows Professor Botulian, a life-long rival of Goodman's, whom he believes to be involved in the affair. His hunt leads him to a lonely house on the outskirts of London where he finds Goodman a prisoner. Before they can escape, Drummond and Goodman are joined by Tenny (E. E. Clive), his valet, and Phyllis, who are also (as usual) being held by the crooks. Faced by Blantyne and his armed confederates, Drummond begins to fight his way out, but is met by superior forces.

On the eve of his wedding Captain Hugh Drummond is off to Morocco when Scotland Yard's Colonel J.A. Nielson is kidnapped by international criminal Richard Lane. With his fiancée Phyllis Clavering, friend 'Algy' Longworth and his trusty valet 'Tenny' Tennyson, Bulldog flies his own plane 1200 miles only to find the local British Consul ordering him home without delay. Drummond isn't an easy man to get rid of however and they soon mount their rescue plan.

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.

Henri Armides and his assistant, Garvey, blow up and rob a London bank in broad daylight and get away with 10,000 pounds. They hide the money in a radio which is in the apartment that Colonel Hugh "Bulldog" Drummond and his intended bride, Phyllis Caverling, will be occupying after they are married. Married nor not, they check out the honeymoon apartment. This does not bode well for Armides and Garvey's plans to recover the money; it also does not bode well for Phyllis and Drummond's plans to get married.

Captain Hugh 'Bulldog' Drummond has just returned to England. As he is driving home in the dark, a young woman jumps out in front of his car. He misses her, but she falls to the ground. As he tries to revive her, he hears a shout for help, then gunshots. As he goes to investigate, the woman drives away with Drummond's car. He is soon able to trace her to nearby Greystone Manor, and when he goes there to meet her, she slips him a note urging him to help her get out of a desperate situation.

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.

The girlfriend of Captain Drummond has been kidnapped by an enemy of Drummond who seeks revenge. But Drummond and his friend Colonel Nielsen at once follow his trail...