Plot summary
Cooper and Charlotte take Erica to Seattle Grace-Mercy West, so Amelia can team up with Derek ( Patrick Dempsey ) and Lexie ( Chyler Leigh ) in an attempt to perform a surgery that requires them to work within ninety seconds. Sheldon begins wondering if Corrine has bi-polar disorder; While Sam and Jake get into an argument over the treatment of a patient who had a heart transplant and Jake proceeded to get her pregnant, before he got to the practice. Violet begins to worry when Scott wants to take their relationship to the next level.
Meanwhile, Erica is finally forced to tell Mason why they are really in Seattle. Corrine is outraged when Sam blames her for all of his problems only for Sheldon to diagnose her with bi-polar disorder, and she finally comes clean with where she's been for twenty years. Derek, Lexie, and Amelia are able to perform Erica's surgery in the ninety seconds that they have to. Addison, Sam, and Jake aren't able to save their patient because she stopped taking her heart medication, but are able to save the baby. Violet tells Scott that their relationship has to be just sex; while Jake questions Addison and his relationship. This episode concludes a crossover with Grey's Anatomy that begins on " Have You Seen Me Lately? ".
Credits
Adapted from Wikipedia contributors, Private Practice season 5. HTML formatting and reference markers removed.