The Hardy Boys/Nancy Drew Mysteries (1977)

The cases of a pair of teen detective brothers and a teen girl amateur sleuth.

Director:

Cast: Shaun Cassidy, Parker Stevenson, Ed Gilbert, Pamela Sue Martin, Jack Kelly, William Schallert, Lisa Eilbacher, George O'Hanlon Jr., Jean Rasey, Edith Atwater, Janet Julian, Robert Karnes, Ron Nyman, Susan Buckner, Anne Lockhart, Edd Byrnes, Ruth Cox, Eric Lawrence