Bulldog Drummond investigates the murder of a sea captain who died before revealing the location of his hidden gold.

Private detective Johnny Fletcher and his sidekick Sam Cragg skip out on their rented room, but when they sneak back to retrieve their luggage, they discover a dead body on the bed, holding a gold coin in its hand. Fletcher is told by a coin collector that the piece is an old and valuable Spanish coin, but Fletcher soon begins to suspect that the man is himself involved in the murder. Fletcher's investigation leads to he and Sam getting caught up in a murder and gold smuggling scheme.

It's 1874 and the Texas Rangers have been reorganized. But Sam Bass has assembled a group of notorious outlaws into a gang the Rangers are unable to cope with. So the Ranger Major releases two men from prison who are familiar with the movements and locations used by Bass and his men and sends them out to find him.

A private detective and his assistant are hired to find a missing husband by the detective's former girlfriend who dumped him. The case is quickly complicated by a sexy brunette, a missing bank executive, a castle in the desert, and a dead body with its "head blown off" but identified as the husband.