Constable Jack Thornton tries to discover a plank's rightful owner after it's discovered in the mine. Elizabeth tries to capture the enthusiasm of her students in the wake of tragedy.

Elizabeth comes up with a plan to keep the widows from moving out of town after they receive an eviction notice from the Coal Company to make way for new mining recruits.

Elizabeth's latest student is a girl who has stopped talking since the death of her father. Meanwhile, Jack looks into the church fire.

After finding the cans of whale oil, Jack investigates Cat Montgomery for her possible involvement in the church arson case; the evidence points to Cat and Gabe becomes upset by the idea of his mother being imprisoned for something she didn't do.

Abigail takes in Carla Noonan, a pregnant widow, to keep an eye on her health while Coal Valley's doctor is away. The new coal miners arrive, and Elizabeth is immediately charmed by young miner Billy Hamilton.

Elizabeth is feeling caught between overprotective Jack and new miner Billy Hamilton but when Jack tells her he has proof Billy lied to her, Elizabeth decides she's had enough; Abigail suggests Jack try a gentler approach to reach Elizabeth.