Chaos reigns with the closure of the Bridge, and the O'Briens are at war over Bree's manuscript. Meanwhile, Kevin is heartbroken visiting Sarah's family in Philadelphia, especially after he's offered his dream job back in Chesapeake Shores. When Trace realizes that he might not return to Chesapeake Shores, his relationship with Abby is cast into doubt, as Jess wonders if her relationship with David can survive without the B&B.

On the eve of the Chesapeake Shores Regatta, with Mick recruiting family members to join him on the water, Abby finally has to make a decision whether or not to break up with Trace for good. Meanwhile, Bree's relationship with Simon is rocked when Caroline appears, and David and Jess have to finally figure out their relationship without the B&B. In a surprise twist, a letter from Ireland might decide Nell's future.