By the end of summer, Nora has not heard from Justin in three weeks and struggles to cope in spite of her efforts to be brave. Kitty takes a break from the presidential campaign to be with her family, and they insist on taking her out on her birthday. Julia hasn't left the house since the death of her newborn, and Tommy isn't sure how to help her. Kevin has spent the summer happy with Jason, but then Jason gets a mission from his bishop - in Malaysia. Sarah has sex with Joe, but what does it mean to each of them? Written by Peter Brandt Nielsen

Justin returns from Iraq after an attack on his unit, but with severe injuries in his leg. Nora wants to help him as much as she can, but that may be too much. Sarah asks Joe to move back home, but he is ready for a divorce. Kitty calls in to a conservative radio talk show and causes Robert all kinds of trouble. An old friend of Rebecca's gets a job at Tommy's winery. Written by Peter Brandt Nielsen

Justin's leg continues to cause him extreme pain, jeopardizing his recovery. Nora and Rebecca mount a campaign to get him to take medication, knowing they risk him becoming addicted again. Tommy comes home to find Julia's parents visiting, and the result is that she decides to take their baby back to Arizona for a while with her parents -- seems she cannot get over blaming Tommy for the death of their daughter's twin brother. Scotty shows up in Kevin's office looking for a lawyer to defend him in a DUI case, which rekindles the friendship they once had. Kitty visits Robert's ex-wife who plans to go on the Larry King show to talk about her suspicion that Robert had an extra-marital affair while they were married. Written by Ron Kerrigan [email protected]

Kitty invites Sarah to a spa on her wedding anniversary with Joe, and Nora tags along. Justin is tempted to relieve his pain as best he knows how, and he lies to Rebecca about taking additional painkillers. Scotty sees Saul with Milo at a gay cocktail party, and Kevin confronts his uncle. Tommy is desperate about Julia leaving town and finds comfort in his employee, Lena. Written by Peter Brandt Nielsen

On the eve of Robert's televised debate appearance, Kitty finds out she is pregnant - and the rumor runs through the family. Sarah is shocked when Joe seeks primary custody of their children.

Kitty brings in an old acquaintance to help handle her pregnancy's impact on Robert's campaign. They plan a quick wedding, but Kitty's first sonogram brings difficult news. Justin goes to a bar with Rebecca and Lena, and Rebecca calls Justin out on his new drug habit. Kevin finds out Scotty is having money troubles and asks him to stay with him for a while. Paige doesn't respond well to her parents' new custody arrangement and ends up running away from home. Written by Peter Brandt Nielsen

Rebecca reveals Justin's painkiller addiction to the family. They stage an intervention and all join in to help him detox. Robert is on the campaign trail, but when a contributor is exposed as corrupt he becomes unsatisfied with his staff. Kitty waits at home to announce she wants to try to have a child again. Saul, feeling uncomfortable about his role in the family, finally tells his sister he was once in love with another man. Written by Peter Brandt Nielsen

Holly advises Rebecca to be herself around the Walkers, which actually works. Now part of the wedding party, Rebecca prompts Kitty to stand up and not compromise on her special day. Sarah is wooed professionally and considers branching out overseas. Nora contacts her first love via email and resumes their friendship. Julia comes back to Tommy, and the tension at work builds following his office flirtation. Kevin and Scott become closer. Written by Ron Kerrigan [email protected]

Kitty and Robert get married amid the turmoil created when the news of Tommy's infidelity makes the rounds within the family. Isaac tries to stop the news surrounding Robert's military record from being leaked to the media. Kevin gets the cold shoulder from Robert's family for dumping Jason, and Scotty isn't too sure that Kevin is actually over Jason anyway. Nora's old flame burns out and a mysterious man from Holly's past shows up at the winery after the ceremony. Written by Ron Kerrigan [email protected]

Revelations about Robert's actions in combat hit his campaign hard, but Isaac comes up with a plan. Nora invites her children to dinner along with Isaac, who she has feelings for. During the evening, the news of Tommy's affair spreads, eventually also to Julia. Jason McCallister is coming home and asks to see Kevin. Rebecca meets David, Holly's lover from the past, and feels a connection. Written by Peter Brandt Nielsen

Jason returns from Malaysia and comes to see Kevin, and Scotty shows up with dinner. Sarah goes to San Francisco with Graham Finch to secure a deal with a Chinese businessman. Tommy and Julia have trouble forgiving each other's missteps, and Lena comes to a crossroads in her relationship with Justin. Nora goes on a date with Isaac. Written by Peter Brandt Nielsen

Robert McCallister is competing in the primaries for the Republican presidential nomination, and the pressure is getting to him. Kitty brings in his brother and children to give him a break from campaign rallies. Sarah gets her divorce papers. Kevin takes her out to a gay bar where he hopes to convince Scotty's bohemian friends he isn't uptight. Rebecca learns about photography from David, eager to spend more time with him. Written by Peter Brandt Nielsen

Robert loses the final round of primaries and the chance to be president. Three months later, he and Kitty are getting help to try and have a baby, Isaac asks Nora to move to Washington with him to the astonishment of her children, and a confrontation at Rebecca's birthday party causes Rebecca to question whether Holly has been telling her the truth about David. Written by Peter Brandt Nielsen

The results of Rebecca's paternity test turn her world upside down. Presidential nominee Taylor, who Robert lost to in the primaries, offers Robert his vice-presidential spot. Kitty, awaiting the results of her fertility treatments, is reluctant to go back on the campaign trail. When Scotty hurts his hand and gets a medical bill he can't pay, Kevin thinks of an easy way to get Scotty health insurance. Faced with Saul's deception at work, Sarah must decide how much she really trusts him. Written by Peter Brandt Nielsen

Fate has much in store for the Walkers. The bankruptcy of the company Ojai has just entered into business with means the future of the family company is in jeopardy. Sarah takes the blame even though Saul approved the deal without her consent, and Nora insists they go to Tommy and Holly for help. Justin battles the feelings that he developed for Rebecca when he learned she might not be his sister; Rebecca finally confronts her mother about the fact that she isn't. Saul crashes his car while under the influence, and he has a confession to make. And what can Kevin do to make it up to Scotty for his unromantic marriage proposal? Written by Peter Brandt Nielsen

Kevin and Scotty plan a quick and simple wedding, but Nora does her bit to make it special. When Scotty's parents refuse to attend, Justin and Tommy take Kevin on a road trip to go see them. Events make Kevin think back to his own relationship with his father. As the news that Rebecca is not a Walker spreads, Sarah blames Holly for misleading the family and does some digging into the past of her own. As Kitty awaits the results of her latest pregnancy test, she and Robert begin to consider other options. Justin and Rebecca come to see their relationship in a new light. Written by Peter Brandt Nielsen