rs & Sisters Season 4 Episode 22 (Brothers & Sisters s04e22) with title “Love All” airs on Sunday, May 2nd 2010 at 10:01 pm via ABC Network. In this episode, you can watch The Walkers seem to all being going through an adjustment period, as Cooper acts out against Sarah while Luc becomes a member of the family, Justin has trouble finding the same passion for medicine that he had while serving in Iraq.