Another dead passenger arrives at LAX, so the gang goes undercover aboard an airplane to catch the killer in the act.

House is secretly trying to treat a fighter pilot who is a candidate for NASA’s astronaut training program. Her diagnosis will be the test to choose which ones of the…

Bill and Eric team up to save Sookie from a mysterious creature. Jason has second thoughts about the Light of Day retreat anti-vampire agenda, but Sarah and Steve counter his…

A taboo office romance is revealed. At a brainstorming session, Peggy proves to be more than a secretary, opening up new opportunities for her at Sterling Cooper. Meanwhile, Rachel faces…