The robbery of the treasure in the tower proves to be an exciting challenge to Frank and Joe. Frank and Joe attempt to foil a ruthless espionage ring in their effort to sabotage the United States space program.

Joe and Frank investigate some pranks around Bayport, leading them to the Red Arrow, a crime grang.

Teenaged detectives Joe and Frank Hardy uncover a plot to sabotage a ski resort.

The Hardy boys and their father solve a mystery involving inexplicable crashes of highspeed race cars being used to test an experimental turbine motor.

Frank and his brother, Joe, are excited! ...their team, the Bayport Bandits, has a real shot at winning. ...The charm is their teammate Jason's mitt. His dad, a major-league pitcher, wore it in the World Series! ... Right before the game, Jason's mitt goes missing! The team is devastated. Can Frank and Joe solve the case of the missing mitt before the Bandits lose the game?

Mission: To stop movie actress Anya Archer's attackers before the blow up everyone at the Big Apple Awards at Radio City Music Hall, New York.

Frank and Joe investigate rumors that someone involved with Pinnacle College's top-seeded football team is being bribed to throw the championship game.

Frank and Joe try to prevent the theft of a valuable collection of diamonds from a show.