Private Practice Season 3 Episode 21 (Private Practice s03e21) with title “War” airs on Thursday, April 29th 2010 at 10:01 pm via ABC Network. In this 21st episode, 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.