Liam Fitzmorgan joins the train, looking for an informer who betrayed the Irish cause. However, Liam soon falls in love with the daughter of the man who he suspects is the traitor.

After advertising to look for his brother Charles and offering a $5,000 reward, a member of the wagon train gets a response from someone who walks through an Indian party that's pinning them all down. What he finds is not what he expected.