Teenage detective Nancy Drew uses her courage and powers of deduction to solve the mysterious happenings in an old stone mansion.

Nancy Drew travels to Peru to solve a mystery involving a long-lost treasure and a crossword clue carved into an ancient wooden plaque.

Nancy Drew sets out to prove that her father's client was unjustly accused of trying to sabotage the United States space program.

Asked to locate a stolen necklace of unusual value, Nancy soon discovers that strange and dangerous people are responsible for the theft.

Nancy Drew comes to the aid of the owners of a local dancing school when they receive an anonymous note threatening their lives.

Attempts are made against Nancy's life when she accepts a case in Honolulu. She must decipher strange symbols written on a piece of paper in order to learn the mystery behind an estate inherited by her client.

While helping the police find the owner of a mysterious house with a crooked staircase and an unpredictable robot, Nancy Drew, girl detective, also helps capture a swindler.

Nancy Drew tries to find a clue to the strange tapping sounds in the house of a retired actress.

Nancy Drew searches the attic of an old mansion that is haunted by a life-size puppet, and learns that someone is trying to keep her from solving the case.