Wagon Train 4x31

The Santee family---Will, his mother, and his younger sister---join the wagon train under a false surname. They have been forced out of town after town because of a terrible thing a family member did. They confide in Hale, Hawks, and Charlie, who agree to keep their secret from the others on the train. But it soon comes out anyway, and things get complicated when Will falls for a young woman from the wagon train.