Elizabeth Thatcher, a young school teacher from a wealthy Eastern family, migrates from the big city to teach school in a small coal mining town in the west.
Allie and Oliver discover a threat. Rosemary invites the kids to debate Lucas oNotn the radio. Bill interrogates a suspect with an old friend's help. Elizabeth fights a cold.
Note: Due to Superbowl on Sunday, this episode is airing on Saturday.