Hank and Karen ponder selling their house and moving to New York, amidst Karen's suspicions of Hank's infidelity. Hank faces confrontations about his sexual history, particularly with Felicia, which is revealed to Karen and Becca. Meanwhile, Charlie and Marcy grapple with their divorce, highlighted by a sexual encounter turned comical mishap. A luncheon at Felicia's escalates into chaos with the arrival of Richard Bates, Hank's past fling, and a Civil War reenactor challenging Hank to a duel. The episode culminates in reflections on relationships and the consequences of past actions.