Carter suffers with insomnia and depression over his separation from Kem, and falls off the wagon. Luka tells Sam he loves her and invites her to move in with him. Neela's parents visit, confused by her choice to drop out of Michigan. The nurses freeze out Abby after a slip of the tongue to Haleh. Weaver advises Barnett to change his appearance. Abby treats a "damaged girl", a young Mexican woman kidnapped and forced into sexual slavery.