What is the name of this historical period tv show?
It starts off with this mother and her 2 kids, who are forced to leave their home after her husband dies. They get on a train and follow some people who are looking for work. They come across a small town and the mother opens her home as a bed and breakfast (or at least takes in some of the workers). Later a situation happens which leads to her young son killing one of the workers by a well or something. The sheriff begins his investigations and quickly points his finger at the mother.