Shaun and Lea clash over their parenting styles and worry about what will happen to their relationship when their child is born; Dr. Lim must find a way to save the damaged lungs that one of her long-time patients has been waiting for.

Dr. Jared Kalu makes a surprise return to San Jose's St. Bonaventure Hospital with his billionaire patient; Park must treat the man his wife had an affair with and try to find a way to forgive him.