Mel attempts to avoid celebrating her birthday while remembering the past. Doc confirms his troubling diagnosis and begins looking for his replacement.

Ricky and Lizzie struggle to find privacy. Doc worries about Hope, who may be stuck in a hurricane. Mel offers Jack an enticing invitation.

Lily divulges a devastating secret to Mel. Brie gets to know Brady better and admits something to Jack. Lizzie's ex surprises her.

Doc and Mel help Christopher and Preacher with a medical emergency. After an angry confrontation, Jack focuses his energy on a romantic gesture.

Mel is taken aback by Doc's news after they interview a new doctor. To Jack's chagrin, Todd makes a bold request. Lily makes a difficult revelation.

Jack and Mel argue about their relationship and their future while competing in the Lumberjack Games. Brie opens up about her painful breakup.

Jack meets with a custody attorney and his stress begins to overwhelm him. Brady gets brought in for questioning. Muriel offers Doc advice.

Heartbroken, Mel heads to LA to support Joey at her divorce hearing. More of Jack's memories return. Lily asks her friends to care for her children.

The town says goodbye to a dear friend. Brie suffers a loss of her own. Mel and Jack discuss what should happen with their relationship.

Jack makes a momentous decision as Mel grapples with how to share surprising news. Doc is plagued with concern. Preacher meets with Paige's friend.