After the revelation of Frank's past, Hope Valley turns on their pastor before Abigail sets out to prove that mistakes of the past don't define the future.
As Jack and Faith's friendship begins to complicate his romance with Elizabeth, Abigail pitches in to help a struggling community and a wave of kindness in Hope Valley has everyone opening their heart for a grand occasion.
As Jack prepares to take a big step toward building a life with Elizabeth, Abigail welcomes Becky back into her home before making an emotional decision about their future as a family.
Jack welcomes an unexpected visit from his mother Charlotte, while Elizabeth struggles to find common ground with a woman who is so different from herself.
When tragedy strikes, Jack, Elizabeth, Abigail and the rest of Hope Valley spring into action to aid the miners from the settlement who are trapped after a landslide.
Abigail takes in a very pregnant widow Carla Noonan to keep an eye on her health while Coal Valley's doctor is away. Meanwhile, the new coal miners arrive to start working while bunking above the saloon.
Schoolteacher Elizabeth and Constable Jack's relationship starts to heat up as they are forced to spend more time with each other. They especially bond in the wake of their shocking arrest of widowed mother Cat Montgomery.
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.
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.
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.