Joe and Frank Hardy travel to Egypt to investigate the theft of five priceless Egyptian statuettes stolen from a New York museum and are asked to guard a mysterious mummy en route.
Two teenage sleuths help their detective father search for a famous rocket scientist whose disappearance endangers the launching of the Firebird Rocket.
Frank and Joe Hardy plan to compete in the local arcade tournament, agreeing the winner will get to move into the cool new room built by their dad, and when money goes missing from the competition, they work together to solve the mystery.
Eight-year-old detectives Frank and Joe Hardy work together help their teammate find his missing baseball mitt before the last game of their little league season.
The Hardy boys try to prevent cheating at a Halloween mystery contest, sponsored by Bayport's Merchant Association, that promises big prizes to the winners.