The Secret of Lost Valley (1980)

Director: Vic Morrow

While on a family outing, a boy, Adam, gets lost in the forest and discovers a wild boy there. Communicating by sign language, they become friends. When the wild boy is captured by scientists, Adam helps him escape.

Cast

Gary Collins

Ned Harkness

Mary Ann Mobley

Susan Harkness

Brad Savage

Adam Harkness

Eddie Marquez

Zane

Jackson Bostwick

Cal

John Lupton

Detective

Tom Simcox

Chief Ranger

Barry Sullivan

Dr. Seldon

James Almanzar

Dave

Don Brodie

Camper