Duncan and Susanna McKaskel are a young married couple travelling to the West with their son, hoping to start a new life. Along the way, they stop in a small town where they meet a gang of bandits led by Doc Shabitt. After Duncan unintentionally angers the gang, he and Susanna flee the town, but Shabitt leads his men in pursuit of revenge. A mysterious stranger by the name of Con Vallian soon begins helping the family as they try to find a new home and protects them from Shabitt's gang.
