Grey's Anatomy: Season 4, Episode 10

4 - 10: Crash Into Me, Part 2

Bailey's notorious alias is promised by the doctors at Seattle Grace to never be used after the wounded paramedic's swastika tattoo, and the death of a worker at the hospital leaves his wife to be very emotional. Lexie, who has become attached to a patient, learns that life is not easy and Meredith is depressed to see that Derek has been moving on.