Bash's past weighs heavily on him as he fights for an emancipated teenager with a failing kidney. Mags treats a baby with a complicated heart condition. Theo is thrown by an asthma patient's brazen mother. After a patient makes waves, Dr. Bishop advises Bash to play it safe, while championing a new initiative in the York Memorial emergency department. June backs Dr. Bishop's proposal for a Trauma OR, sets boundaries with her brother and tries to get a surgical patient to his wedding.