The Hardy brothers interrupt their investigations of jewelry-store holdups to answer a plea from their cousin on a New Mexico cattle ranch.

Their SOS ignored in a storm, the Hardy boys find a wallet containing two thousand dollars alongside their boat and are launched into a mystery involving diverse clues.

While trying to trace the whereabouts of a kidnapped movie star, Frank and Joe find themselves in dangerous company when they join a film company on location at a ski resort.

An awesome dinosaur model is missing.

Racing cars! Mystery! Adventure! These elements combine to give Frank and Joe Hardy one of the most dangerous and intriguing cases of their careers. It all starts when their father, Fenton Hardy, is engaged by an experimental race car and motor designer to investigate a series of mysterious accidents. Three of his drivers have crashed because the windshields of their cars were suddenly crazed, thus cutting off forward vision. Frank and Joe uncover...

A banker who has been receiving threatening notes enlists the help of the Hardy boys. Before very long, the young sleuths find themselves entangled in the investigation of a notorious band of thieves.

Difficult assignments are nothing new to the Hardy boys, and this one that takes them to the deep South is particularly challenging. Their mission: to vindicate a long-dead Confederate general, disgraced during the Civil War because he was accused of stealing hidden gold belonging to a bank. In a museum exhibiting relics of the Civil War, the brother sleuths find a puzzling clue that may help to clear the general's name and pinpoint the location of...

Frank and Joe investigate the legend of Whalebone Island when they receive a warning concerning a sunken freighter

Frank and Joe are brothers, but that won't stop them from competing against each other at the Fun World arcade's video game tournament. The boys make a bet: Whoever wins the competition gets to move into the cool new room their dad just built! But suddenly money goes missing. The owner of Fun World shuts down the tournament until the stolen cash is returned! Can the boys figure out who took it? Or will their chances of victory -- and a brand-new room!...

The story begins with Frank and Joe Hardy barely avoiding being hit by a speeding driver whom they notice has bright red hair. Later, this same red-haired driver attempts a ferryboat ticket office robbery and successfully steals a yellow jalopy called Queen from the Hardys' friend, Chet Morton. Due to one witness reporting that the villain had dark hair, the Hardys assume he is using a red wig. It is learned that the thief returned to Chet's home...