Elizabeth wonders if she is truly ready to let love in again. Rosemary wonders what her purpose is. Clara and Jesse sort through their issues. Carson receives an amazing opportunity.
Elizabeth is distraught over the reveal of Nathan's secret. Everyone helps a couple prepare for their wedding. The bachelor and bachelorette parties stir up mixed emotions from the guests. A mysterious businessman arrives in town.
Elizabeth receives a sentimental surprise in time for Little Jack's first day of school. Nathan trains a new Mountie cadet. Rosemary and Lee make a landmark decision.
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.
Elizabeth helps Allie plan a birthday dance, and Nathan struggles with Allie growing up. Rosemary and Bill team up again to investigate a train robbery. Lucas lends Edie a hand.
Abigail is beginning to let go of her grief and look toward the future with forensic investigator Bill Avery. Meanwhile, a hurt and confused Jack confronts Elizabeth about her new job offer back home.
