Fenton Hardy, the famous private detective and father of the Hardy Boys, asks his sons to help him with his latest case involving a criminal named Snattman and the illegal drug trade smuggling of stolen drugs. Hardy directs Frank and Joe to a house on the cliff, whose location overlooking Barmet Bay offers an excellent vantage point to watch for smugglers. The Hardys are tricked into the house by cries for help, and are trapped for a short time in...

Frank and Joe attempt to foil a ruthless espionage ring in their effort to sabotage the United States space program.

The Hardy boys embark on another puzzling mystery when they try to discover who is stealing rare collections of ancient pirate treasure and smuggling them out of the United States.

Valuable antique weathervanes are being stolen in the Pennsylvania Dutch country. A Navy employee removes a top secret document from the Pentagon. The Hardy brothers try to solve these two seemingly unrelated mysteries.

A self-directing adventure starring Nancy Drew and the Hardy brothers, who are investigating the disappearance of a briefcase full of money.

Frank and Joe accompany a college champ preparing for a national championship in the sport of orienteering, but accidents begin to happen and they must find out who is trying to stop him from competing.