Plot summary
Addison decides to take her life in a new direction and try things that she has never done, so she begins talking to a man that she met in the supermarket--eventually accepting a date with him. Violet's medical license gets suspended, and she finds out that the medical board is going after the practice next. Charlotte finds that her new patient is a rape victim and tries to convince her that she is going to come through the rape. Cooper and Pete work with a little girl who is going to die soon, but by trying to give the little girl more time with her family she inadvertently dies because of a reaction to the drugs.
Violet decides to go on a book tour which angers Pete. Naomi decides that she wants to be with Dr. Fife and moves to New York with Betsy and him so they can be close to Maya. Charlotte worries about Amelia when she finds that she has begun drinking again. After accepting the offer to go to Fiji with the supermarket man, Addison turns back and tries to save the practice. While cleaning up the house after Violet leaves, Pete suffers a heart attack.
Credits
Adapted from Wikipedia contributors, Private Practice season 4. HTML formatting and reference markers removed.