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.
Rex Allen
as Rex Allen
Koko
as Koko, Rex Allen's Horse (as Koko the Miracle Horse of the Movies)
Buddy Ebsen
as 'Snooper' Trent
Penny Edwards
as Nancy Bonner
Roy Barcroft
as Hank Driscoll
Sarah Padden
as Sarah Wendover
Grant Withers
as Red Bancroft
Arthur Space
as Robert Hatfield
Edwin Rand
as Jess Sutton
Robert Karnes
as Henchman Jack Scully
William Holmes
as Henchman Pete Millan
Stanley Andrews
as Sheriff
