Hardy boys undercover brothers

Frank and Joe Hardy investigate the disappearance of several teens at a "tough love" western camp.

Frank and Joe Hardy investigate a series of crimes by two teen boys posing as the Hardy brothers.

Frank and Joe Hardy investigate the murder of Evan Davis, a runaway teen who was pushed off a subway platform in New York City, and find a host of suspects including the boy's father, a politician who would rather keep his son's identity a secret.

Frank and Joe Hardy investigate burglaries in Bayport that occur after false hurricane warnings.

Frank and Joe Hardy, as members of American Teens Against Crime, are sent to investigate the alleged haunting of a juvenile detention center, and begin to question their beliefs about supernatural phenomena.

The Hardy Boys investigate when forged versions of valuable comic books are found at a convention in San Francisco.

Frank and Joe Hardy travel to St. John to investigate the kidnapping of Esteban Calderon, son of United Nation's ambassador Don Ricardo.

Brothers Frank and Joe Hardy, agents of American Teens Against Crime, are recruited to act as undercover bodyguards for wealthy celebrity Samantha Chilton who has come into possession of a map to a long-sought golden mummy in Egypt--a prize someone is apparently willing to kill for.

Frank and Joe investigate a hazing at Eagle River Academy and the death of a student.

Frank and Joe Hardy, agents of the top secret American Teens Against Crime organization, cannot believe their luck when they are sent to a local diamond show and assigned to guard supermodels--who just may be diamond thieves.