When a wooden plank inscribed with a sentimental message is discovered in the mine, new constable Jack Thornton tries to discover the plank's rightful owner; Elizabeth struggles with capturing the enthusiasm of her students in the wake of tragedy.

When all the widows in Coal Valley receive eviction notices from the Coal Company to make way for new miner recruits, Elizabeth hatches a plan to keep the widows from moving out of the only town they know.

Elizabeth helps a mute student who is struggling to cope with the death of her father; Jack investigates the mysterious circumstances surrounding the burning of Coal Valley's only church.

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

When a group of new male miners comes to Coal Valley, many of the town's women get caught up in the idea of the single men. One of the new miners begins courting Elizabeth and Jack seems to have concerns that resemble jealousy.

The Miners' Games allow the townspeople to cut loose and have a little fun; Elizabeth and Billy Hamilton spend more time together; Jack investigates a series of robberies that are plaguing Coal Valley.