Last updated on Tuesday 21 January 2014 at 01:07 UK

Watch Grey's Anatomy Series 1 Episode 4 Online Free

Grey's Anatomy Series 1 Episode 4PLAY

Cristina's encounter with a former nurse, now a patient at Seattle Grace, changes her forever; Derek and Meredith treat a construction worker who has miraculously survived an injury but is now faced with tough decisions about his future; and a patient recognizes Izzie from a lingerie ad, which makes her the subject of hospital gossip.

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