Season four sees Kevin and Scotty decide to start a family while Kitty finds her family may be torn apart when she receives unexpected news. Sarah finds love with Luc, a man she met in France who traveled to America to be with her, but the dream doesn't seem to last in her real life. Justin is finding it hard to balance his engagement to Rebecca with his medical school studies, while Rebecca has troubles of her own. After not having their wedding Rebecca comes to find out she is now pregnant with Justin's baby but Rebecca ends up having a miscarriage which causes some more strain on their relationship. While her children go through difficult times Nora must try her hardest to get them through their troubles and Ryan causes trouble for the Walkers and Ojai by teaming up with a man from William's past. Will Holly's obsession with the secrets of Ojai ruin her relationship with David?