Drummond manages to save a woman from jumping in front of his car but she runs away with his car. He traces her and she asks him to help her out of a dangerous 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 involving a series of deaths and an elusive murderer.

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.

Dr. Alfred Morris, a university chemistry professor, rediscovers an ancient Mayan formula for a gas which turns men into pliant, obedient, zombie-like ghouls. After medical student Ted Allison becomes a guinea pig for Morris, the professor imagines that Allison's fiancée, a beautiful concert singer Isabel Lewis, wants to break off the ...

After the Civil War, an ex-Confederate soldier faces new battles, including the elements and a carpetbagger intent on destroying him.