The Hardy boys travel to the Deep South to vindicate a long-dead Confederate general, disgraced during the Civil War because he was accused of stealing hidden gold belonging to a bank.
Helping in a case their father is working on, the Hardy brothers try to find an informer who has telephoned from a booth in their home town, and are hired by a carnival owner to spot pickpockets.
Called in to investigate the theft of some statuettes stolen from the Eygptian Museum in New York, the Hardy brothers become involved in a deepening mystery which includes the possible overthrow of another country's government.
Despite attempts against their lives, Frank and Joe accept a case involving the most powerful man in a small town in Georgia and an allegation of piracy and smuggling.
Frank and Joe Hardy, enjoying backstage passes to the Vette Smash concert, decide to investigate when it becomes obvious that someone is trying to sabotage the band.
Frank and Joe Hardy travel to Philadelphia with friends to see Aerocirque, an exciting new circus act performed from helicopters, and become involved investigating a series of robberies in high-rise apartments.