The widow of Lee's former partner arrives and gives Gowen a chance to run a company again; Elizabeth tutors a new student; the residents of Hope Valley conspire to pull off a surprise.
When a group of orphans become stranded in Hope Valley for Christmas, their caretakers - sisters who have a mysterious backstory - lead Bill to investigate
After a foolish comment, Carson must admit that he cares more about Faith. The charming new saloon owner, Lucas Bouchard, causes a stir. Elizabeth teaches self-confidence, and Abigail takes a risk on the stock market with Gowen.
Jack returns and he and Elizabeth start planning their future. Plus, Sparks fly between Carson and a new arrival and the town is put on edge when Lee can't withdraw funds to pay his employees.
Bill is put in jeopardy while transporting AJ to face trial; Abigail tries to save the town from an investor who will hurt Hope Valley; Carson is faced with a decision; Elizabeth tries to reunite a mother and her son.
Four months have passed since the birth of baby Jack Thornton. Motherhood is a lot of work for Elizabeth, but it is also filled with so much joy. Like his father, Jack is loved by all the ladies and all the men enjoy being his friend.
Bill convinces an estranged friend to help catch criminals, Abigail & Lucas face off about the saloon's disruption to town, and Faith & Carson consider revealing their relationship.
Landis, the school inspector, arrives in town causing trouble for Elizabeth. Rosemary finds her calling. A search is called when one of Hope Valley's residents is lost. Carson and Faith's relationship is put to the test.
