Flint must find a way to get the wagon train around a snow covered pass. On a scouting trek, he meets a father and son who are willing to help him but they want to hike up the mountain. The adventure ahead has surprises for them all.

The Shoshone string up a Pawnee warrior to die. The train finds the warrior and discovers that he's the long-lost son of Spanish aristocrats... and the Shoshone won't stop until he's dead.