Here's the official press release of the 9th episode:
“The Parent Trap” (Thursday, December 3 at 9:00-10:00 p.m., ET) - Addison performs a complex in utero surgery, proving not only her talents to her father but also finally giving them some common ground. Meanwhile Sam and Naomi deal with their own family crisis when they discover their daughter is growing up way too fast, and Violet does the unthinkable.
“The Parent Trap” was written by Craig Turk and directed by Donna Deitch.
Note: On Thursday, December 3 (9:00-11:00 p.m., ET), two back-to-back episodes of Private Practice (episodes 9 & 10) will be shown.