Trace returns to Abby after three months on tour, only to discover a family in turmoil. Bree's completed manuscript turns out to be a thinly veiled story of the family. Mick ends the fight over the family trust but begins a feud with Connor.

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. Bree welcomes an old friend back into her life.

Trace's role in Abby's family is questioned. Everyone helps out running the BandB. Connor learns the truth about Danielle.

Jess and Bree discover David's parents' secret plans. Abby joins Trace on tour. Thomas's vow renewal sparks Mick and Megan to re-examine their own relationship. Connor reconciles with Kevin.

With Trace still on the road, Abby and Trace find a way to combat the loneliness. With Simon in town, Bree has to define a new normal, as does Mick and Megan, who begin to suspect that old feelings never go away. Meanwhile, Sarah is injured on the job, and Kevin has to take a step back into his own past to help Sarah move forward.

Wes's new girlfriend reminds Abby that she might not be the only "mom" in Carrie and Caitlyn's life, and David and Simon's presence in Chesapeake Shores puts Jess and Bree in an unusual position.

Trace discovers that the general manager of The Bridge stole large sums of money. Abby realizes that she can't be a perfect boss, parent and girlfriend. David Peck's sister arrives, threatening Jess and David's relationship.

Battle lines form after Megan reads Bree's manuscript, Trace and Mick disagree over the future of the Bridge, with Jess's B&B's being devoured from within, and it appears that the same might be true with the O'Brien family.

Chaos reigns with the closure of The Bridge, the O'Briens are at war over Bree's manuscript, Kevin is heartbroken visiting Sarah's family in Philadelphia, and Trace realizes that he might not return to Chesapeake Shores.

Abby finally has to make a decision whether or not to break up with Trace for good. Bree's relationship with Simon is rocked when Caroline appears, and David and Jess have to finally figure out their relationship without the B and B.