
Hopalong Cassidy

Lucky Jenkins

California Carlson

Jane Travers

Stephen Westcott
Diana Westcott

Ed Martin
Jim Ferber

Pete Gregg
Don Pedro
Bar 20 Hand

Luke

Rancher Rex Allen receives a summons from his uncle. an old time frontiersman, that he is in trouble. The uncle has been hired to lead a modern-day band of adventurers on a wagon train retracing the route taken by their ancestors 100 years ago. Before Rex can talk to his uncle, the uncle is murdered, and Rex sets out to find the killer and the motive by taking his uncle's place as the leader of the wagon train.

A fictionalized account of the real-life adventure of the Sager family. Travelling with a wagon train from Missouri to Oregon, things are going well for the Sagers, until father Sager dies from blood poisoning following an Indian attack, and mother Sager dies soon afterward from pneumonia. The leaders of the wagon train decide to send the children back, but the oldest, John (who had been described by all the adults as lazy and worthless), decides to lead his siblings through the wilderness to complete the journey their parents started.