Zucker/Netter Productions

A slick New York publicist who picks up a ringing receiver in a phone booth is told that if he hangs up, he'll be killed... and the little red light from a laser rifle sight is proof that the caller isn't kidding.

Katy McLaughlin desires to work on her family's mountainside horse ranch, although her father insists she finish boarding school. Katy finds a mustang in the hills near her ranch. The headstrong 16 year old then sets her mind to tame a mustang and prove to her father she can run the ranch. But when tragedy happens, it will take all the love and strength the family can muster to restore hope.