While vacationing in the Midwest with her friends, Nancy Drew investigates a mysterious magnetic cloud, searches for a hijacked plane, and hunts a horse thief.

In a response to a friend’s call for help, Nancy’s father, a lawyer, asks her to travel to mysterious Crocodile Island with her friends Bes and George to study the reptiles and try to uncover a group of suspected poachers.
Upon their arrival in Florida, the girls are kidnapped but cleverly escape to pursue their detective work. Dangers mount as they cope with reptiles, enemy boats, and exciting chases after the men who are responsible...

Trouble plagues a student tour through Europe as Nancy becomes involved in a plot to smuggle refugee children across the Austrian border from Eastern Europe.

At a fitness ranch in Arizona, Nancy discovers the reason for mysterious accidents thought to result from a curse put on the place by Hopi Indians.

When a model disappears, Nancy takes her place in a benefit fashion show and helps to track down a dress thief.

Nancy's search for the long-missing daughter of an aging millionaire takes her to Cheyenne, Wyoming, during its annual Frontier Days celebration.

Nancy Drew wants her team to win the charity bicycle race, but when all the money that has been raised for the cause disappears before the race, she wants to find the thief even more.

A quest for pirate treasure takes clever detective Nancy Drew and her friends to a small island in the Bahamas.

Nancy's latest mystery involves golf pros, opera stars, jewelry designers, and webs and spiders.

Nancy sets out to locate a kidnapped actress and to clear one of her father's clients, a renowned photographer, accused of stealing ideas for his images.