S04E07Grey's Anatomy season 4 episode 7: Physical Attraction, Chemical Reaction
Aired 8 November 200743 minRated TV-14
Where to watch Grey's Anatomy Season 4 in Australia
Grey's Anatomy season 4 is streaming in Australia on Disney+ (subscription, listed for the whole show).
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Availability checked 16 November 2026.
What happens in “Physical Attraction, Chemical Reaction”
Izzie and George's new-founded relationship results in them having bad sex. Callie's Chief Resident position is taken away from her, and Bailey is the humble replacement. Meredith can barely handle it with Lexie anymore.
Episode summary: TMDB.
Before you watch
- It is episode 7 of 16 of season 4, so watch episodes 1 to 6 first.
- It runs about 43 minutes.
- Directed by Jeff Melman, written by Joan Rater.
- TMDB users rate it 7.9 out of 10 (15 votes).
Grey's Anatomy trailer
The official trailer for the series (no preview of this episode has been published).
Play video: Grey's Anatomy trailer
Cast and crew of this episode
- Director
- Jeff Melman
- Writer
- Joan Rater
- Guest stars
- Brooke Smith as Erica HahnJeff Perry as Thatcher GreyDavid Burke as DonMark Saul as SteveStephanie March as JaneVicki Lewis as HarrietRockmond Dunbar as Sean BrothertonEnuka Okuma as Teresa Brotherton
Credits: TMDB.
More from Grey's Anatomy Season 4
Every episode of Season 4Grey's Anatomy episode guide
Episode names, air dates, runtimes, stills and ratings: TMDB. Air dates are the first broadcast anywhere; where it streams is our daily Australian check.