Peter Birkenhead

When a family arrives at Seattle Grace Hospital after a serious car accident, Alex learns that their injuries are only the beginning of their problems. Meanwhile, as Dr. Webber recovers from brain surgery, it seems that his wife (guest starring Loretta Devine as Mrs. Webber) has some concerns about the state of their marriage.

Bree's forced to handle catering for Bob and Lee's wedding by herself when Katherine bails out; Gaby gets a call from Ellie; Julie finds out about her acceptance to Princeton, but Susan doesn't want her to go.

Susan's mother-in-law visits; Carlos and Gaby find out their tenant has a dark secret; a war erupts between Bree and Edie.

House must diagnose a man who became sick and experienced a breathing attack while role-playing in the bedroom, but all tests keep returning normal.

Mike and Susan show off their new child; Gaby forms a strong bond with Ellie (Justine Bateman); Lynette is accused of child abuse. Death threats rock the neighborhood; Katherine's secrets are revealed.

The lawyers are shocked when a new attorney joins the firm; John and Nelle represent a couple in a wrongful-termination suit.