Peter Lundy and the Medicine Hat Stallion is a television movie starring Leif Garrett which aired November 6, 1977 on NBC.
[1] It is based on the novel San Domingo, The Medicine Hat Stallion by Newbery Medal award winner Marguerite Henry.
The movie was developed and produced by Ed Friendly and directed by Michael O'Herlihy from a teleplay by Jack Turley.
Peter resents the tyrannical way his father treats him and hates the bleak life at their prairie trading post.
Peter and his horse then win a job with the Pony Express to carry correspondence and messages between the East and West coasts.