
Elizabeth Thatcher is a young teacher accustomed to high society, so she experiences culture shock when she gets her first classroom assignment in Coal Valley. Life in the small mining town is filled with challenges. A recent explosion has killed more than a dozen of the town's miners, compelling the widows of those men to work in the mines to earn money. Constable Jack Thornton, also a newcomer, is not as welcoming, because he believes Thatcher's wealthy father doomed his career by assigning him to Coal Valley so he could protect Elizabeth. Over time, though, Elizabeth and Jack become closer and begin a relationship. Janette Oke's books about the Canadian West inspired the series.

When Little Jack falls ill, Elizabeth and Nathan care for him together as Hickam and Mei race to secure medicine; the kids broadcast a baseball game over the radio to lift spirits.

As graduation approaches, Elizabeth and Nathan plan for a happy summer together; Lucas and Edie race Rosemary and Bill to find the gold; the town plans a sweet surprise for Minnie.

Hope Valley prepares for the opening of Goldie National Park; Elizabeth, Nathan, Allie and Little Jack return home, but is it for just the weekend?

Nathan responds to fire in Goldie National Park while Elizabeth leads relief efforts in Hope Valley.