Based on books by FRANKLIN W DIXON and CAROLYN KEENE
This week: Pamela Sue Martin as Nancy Drew in The Mystery of the Diamond Triangle
Nancy Drew is up in her own glider with her girlfriend George when she sees, to her horror, a car being deliberately forced off the road far below into a deep ravine. She immediately alerts the local sheriff, but when he finds no sign of either the car or the driver, Nancy sets out to unravel the mystery herself.
Directed by NOEL BLACK