Jack and Elizabeth's relationship is put to the test. Pastor Frank and Abigail make a decision about their future and Bill helps a young girl solve a mystery.
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.
Elizabeth assigns her students to follow business leaders in Hope Valley; Abigail and the town host two possible investors for the failing bank; Bill's life is disrupted when AJ Foster arrives and turns herself in.
Elizabeth’s favorite time of the year, Christmas, is extra special this year since it’s also baby Jack’s first birthday. Lucas is putting on a Christmas festival for the entire town inspired by his time overseas as a child.
