Doris Merrick

Although they are only janitors at a detective agency, the boys pass themselves off as sleuths and are engaged to guard an inventor delivering a new bomb. They outwit enemy agents after the bomb and wind up sinking a Japanese submarine. (imdb)

A private detective is hired to retrieve a valuable antique coin that was stolen from its owner by her son, who used it to pay off a blackmailer. The private eye soon finds himself up to his ears in fights, more blackmail, hysterical women and murder. (imdb)

A naive young girl, looking to escape from a bad family situation, falls in love with a man who turns out to be a cad, and leads her down the road to ruin. (imdb)

Scotland Yard cop goes undercover to catch a gang of counterfeiters. (imdb)

Professor Groves, an expert in prehistoric life, proves his theories with an extract that'll regress a cat to a saber-tooth tiger and man to a Neanderthal. (imdb)

Released from a navy hospital following WW II, Lon Evans learns that he faces eventual blindness and returns to his Wyoming ranch. He sees a beautiful white stallion named Starlight and his cowhands Lem and Yancy say he is a killer and cannot be trained. Lon disproves this by training the stallion to act as his guide in preparation for his future blindness. He meets Jeanne Barton, and they fall in love, but Lon, knowing that he is going blind, decides he cannot marry Jeanne, and avoids her.

During World War II, an American bomber pilot is rescued after drifting at sea aboard a raft. After being administered truth serum, he tells the doctor a story of how he and the three survivors of his plane crash washed up on an island that was inhabited by a tribe of beautiful primitive cave-women, dinosaurs and a group of savage cavemen who are bent on abducting the women for breeding purposes. (imdb)