After months away on tour, Trace returns to Abby. Trace's Chesapeake Shores homecoming becomes complicated, however, when his growing fame draws unwanted media attention to his relationship with Abby and her girls. Mick faces off against Connor in an environmental legal battle. Though the two are on opposing sides, Mick tries to warn his son about a major error before it is too late. Jess discovers Bree's manuscript and is shocked to discover what's inside. Meanwhile, Kevin continues his paramedic training, and grows closer with Sarah. When Trace and the O'Brien family come together for the annual oyster festival, Nell recruits the family to save a beloved landmark.