The fifth of seven "Red Ryder" westerns starring Allan Lane, Oregon Trail Scouts recounts how Red met his young sidekick, Little Beaver. Failing to acquire hunting rights on the Willamette Indian Reservation, evil Bill Hunter (Roy Barcroft) decides to kidnap Little Beaver (Robert Blake) and use the boy as leverage in future negotiations with Beaver's grandfather, Chief Running Fox (Frank Lackteen). Beaver's foster-father, The Judge (Earle Hodgins), is murdered in the ensuing fracas but the Indian boy finds a safe haven with fur trapper Red Ryder (Lane). Hunter and his men make another move to catch Little Beaver, however, but are once again foiled by Red, this time for good. Although pleased that his grandson is alive and well, Running Fox leaves it up to the child whether he wishes to stay with the tribe or remain with Red Ryder and his aunt, the Duchess (Martha Wentworth). Little Beaver chooses the latter option and a long-lasting friendship is established.