Kevin's fiancée arrives in town, surprising the O'Briens. Meanwhile, Abby gets tangled in a fraud investigation; and Trace receives bad news about the water-house property he covets.

Mick nervously faces a failing business deal; Abby is subpoenaed in the investigation against Wes; Kevin recovers from his fall at home while struggling to define his future with Georgia; Trace learns the warehouse property is still in reach.

As Abby and the rest of the O’Briens prepare for the town’s annual lantern festival, Trace must return to Nashville to face a mistake from his past. Mick takes his granddaughters back-to-school shopping while covertly working on a business deal that is bound to cause family conflict.

Mick makes some unpopular business decisions when he plans to sell the nightclub that he and Trace had built together. When planning her cousin’s wedding goes awry, Jess turns to an unexpected source for help. Bree fights to regain control in the production of her play.

Mick receives damaging information about Thomas and considers whether to use it in their town hall debate over the family land trust. Jess plans a special meal to win David over but is fearful to take the next step in their relationship.

With a nod to the past, Nell tries to save the Wish Fountain; Abby discovers a never-opened letter that she sent to Trace; Mick inherits a sailboat and reunites with his brother Thomas; and Bree welcomes an old friend back into her life. After Kevin witnesses a secret hug, Connor's future is thrown and Jess's future beckons with an invitation from everyone's favorite chef.

Abby learns her ex-husband is in a serious relationship navigates their new family dynamic. Abby misses Trace by her side as she explores the new co-parenting roles with Wes and his girlfriend. Pulled in many directions with work obligations, Trace misses out on family moments with Abby and the girls. Mick and Megan’s relationship continues to evolve, but is influenced by their past. Having worked independently for months, Jess adjusts to David’s return to the bed and breakfast. Also adjusting to a man in her life is Bree, who attempts to define her partially professional, partially romantic relationship with Simon. At the Chesapeake Shores Fire Department, Kevin enjoys a week of on-the-job training with Sarah. Meanwhile, Nell recruits Connor to investigate a contestant who is breaking the rules in an annual gardening competition, but a surprising discovery makes her rethink the plan.