Nathan and Elizabeth exchange secrets. Rosemary and Lee pitch Lucas an idea for the future of Hope Valley.

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.

Elizabeth and Nathan uncover Oliver’s secret, and Rosemary worries Lee has a secret of his own. Allie’s interest is piqued when Earl Wyatt returns to town.