A MEDICAL CASE ARRIVES AT SEATTLE GRACE HOSPITAL THAT ENDANGERS EVERYONE IN THE O.R., ON ABC�S �GREY�S ANATOMY�

This Episode Will Air Immediately Following ABC�s Super Bowl Coverage

Christina Ricci and Kyle Chandler Guest Star

�It�s the End of the World� � Meredith�s fears that she is in for a bad day are realized when a medical case arrives at Seattle Grace that threatens the lives of everyone in the O.R., on �Grey�s Anatomy,� SUNDAY, FEBRUARY 5 (approx. 10:15-11:15 p.m., ET) on the ABC Television Network.

�Grey�s Anatomy� stars Ellen Pompeo as Meredith Grey, Patrick Dempsey as Derek Shepherd, Sandra Oh as Cristina Yang, Isaiah Washington as Preston Burke, Katherine Heigl as Isobel �Izzie� Stevens, Justin Chambers as Alex Karev, T.R. Knight as George O�Malley, Chandra Wilson as Miranda Bailey, James Pickens, Jr. as Richard Webber and Kate Walsh as Addison Shepherd.

Guest starring Christina Ricci as Hannah and Kyle Chandler as Dylan Young

�It�s the End of the World� was written by Shonda Rhimes and directed by Peter Horton.

�Grey�s Anatomy� is broadcast in 720 Progressive (720P), ABC�s selected HDTV format, with 5.1-channel surround sound and Spanish subtitles via secondary closed captioning.

A TV parental guideline will be assigned closer to airdate.