PRIVATE PRACTICE - "War" - After Violet files for joint custody of Lucas, an embittered Pete voraciously fights back by hiring a tough attorney for the trial, forcing their fellow friends and co-workers to choose sides and have their personal lives dragged onto the stand and into the public eye, on "Private Practice," THURSDAY, APRIL 29 (10:01-11:00 p.m., ET) on the ABC Television Network. (ABC/MICHAEL DESMOND) FRANCES FISHER, JOHN COTHRAN JR., AMY BRENNEMAN