When neurosurgeon Maggie Sullivan's seemingly perfect life in Boston is turned upside down, she leaves the city and her boyfriend, Andrew, to return to her childhood home of Sullivan's Crossing in Nova Scotia.

Maggie sees Cal in a new light after they help an injured resident and spend time together at karaoke.

Maggie and Cal work against the clock in a daring medical rescue, and in the process discover a clue to the whereabouts of a missing camper. Maggie learns a little more about Cal’s past, while Sully receives disturbing news.