Arizona and Callie examine the problems that continue to impact their marriage, and Richard turns to Bailey for advice.
Marshall lands his dream job but worries that his past indiscretions will cost him the role; Ted can't decide who to bring to the Architects Ball.
Ryan and Jack get competitive during disaster drill training; Captain Pruitt's health weakens; the crew and the police department respond to a fire at a strip mall.
Catherine reopens the case of a death-row inmate after new DNA evidence surfaces; the body of a murdered college student is found in a trash bag.
Paul discovers he has a lot in common with his new editor; Paul forbids the girls from inviting their boyfriends to Thanksgiving Day dinner.