Sherlock Holmes and the secret weapon: Sherlock Holmes battles his arch rival, Professor Moriarty, who has kidnapped the inventor of a new bombsite. The woman in green: Hypnotism, blackmail and fiendish murders lead Holmes and Watson straight to the evil Professor Moriarty and his lovely accomplice.

Nancy Drew--reporter: While working as a reporter for the local newspaper, Nancy investigates a poisoning death and becomes convinced that the woman charged with the crime is actually innocent. Borderline: Two agents both assigned to infiltrate a drug-smuggling ring on the Mexican border, fall in love. Each believes the other is a criminal and they are ultimately forced to make an escape together.

Bulldog Drummond comes to the aid of a pretty heiress who is being held against her will by villains. Lots of action and adventure as a scheming "family friend" hopes to get his mitts on her inheritance. Detective Mr. Moto is assigned to stop two spies try to sabotage French ships passing through the Suez Canal with plans to blame the British.