Nancy comes to visit her former neighbor, Vera, at White Falls, Mass. While she is there, someone threatens Vera's life and Nancy finds herself investigating a murder that happened fifty years ago to find the answer.
The Hardy boys track a criminal who plans to use an invention designed as a peaceful aid to the secret Four-Headed Dragon organization behind the Iron Curtain to harm the free world instead.
The Hardy brothers travel from the highways of eastern United States to tropical islands trying to track down truckloads of precious cargo that are being hijacked.
Herb sets up a hidden camera in the girls locker room hoping to get some nude photographs of cheerleaders, and instead captures a scene that puts his own life in danger.
Jamil's father is including snowboarding in the Hoke Valley Resort Spring Festival for the first time, but someone is trying to get snowboarding banned by spreading false stories in the local press.