While visiting the Bayport Natural History Museum after learning all about dinosaurs in school, Tico makes the discovery of the day when he finds an old dinosaur tooth on their dig on the museum grounds, but after the tooth goes missing it's up to Frank and Joe to solve the mystery.
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.
Joe and Frank Hardy win a contest to be handlers for a Green Crawler balloon in the annual fall festival, but when the balloon is sabotaged the day before the parade, the brothers must investigate.
Frank and Joe continue to follow teen movie star Justin Carraway to Atlantic City, New Jersey, in order to detect information about the mysterious death of Carraway's most loathed paparazzo, but the killer might be closer than anyone suspects.
Presents the first four novels in the "Hardy Boys: Undercover Brothers" series, in which Frank and Joe Hardy work as undercover agents for the American Teens Against Crime organization.
The Bayport Battle of the Bands will showcase the best local bands and Crush, led by Dylan is sure to win, but then Dylan's bass guitar disappears and the band is out of the running unless Frank and Joe Hardy can find it fast.
Frank and Joe Hardy are suspicious of Max O' Malley, a new kid in town who claims to be a magician, and when Mrs. Briar's prized show dog arrives and Charlie begins to disappear and reappear, Max becomes the prime suspect.
