The doctors are exposed to flu-infected patients; Derek prepares to give a speech; a new doctor gives Alex a glimpse into an alternative medical practice.
Sam is assigned to go undercover as a fighter in a mixed martial arts gym while the team is investigating the murder of a marine.
Angus' brother returns to Angels Memorial in hopes of landing a position as an attending physician; Christa's feelings toward Neal increase; a patient becomes obsessed with Malaya.
Betty gets an assignment to cover London Fashion Week, accompanied by Amanda, and she brings Hilda along as a bachelorette party treat.
The team strike a deal with a convicted murderer, giving him a 48-hour furlough at his former residence in exchange for information.
