She lands back in California with a new French beau, Luc, who helps her question her view on men and relationships. At the head of the clan is Nora, the strong matriarch who taps into strength she never knew she had and discovers new ways to bring everyone together as a family. Rebecca is taking the job at Maddox Foods, but what about Justin? They are later just about to be married when Kitty collapses at their wedding. Just as their romance heats up, Sarah receives contact from Luc and realizes she still has feelings for him. Meanwhile, Kevin and Scotty discuss the real possibility and challenge of surrogacy.
Tommy helps the rest of the family sell off Ojai assets and, with Sarah, organizes its closure. But, after they begin to communicate they become close and move past losing their baby. What will become of Narrow Lake? Meanwhile, Robert speaks to Justin secretly and gives him the key to his safety deposit box. In fact, he witnesses a small boy being hit by a car and goes to his rescue which makes him realize how much he wants to be a father and her husband, and rushes home to tell her this. As the wedding grows closer, Justin's resolve to stay sober is weakened as he and Rebecca harbor secrets that could make or break their relationship for good. Kevin and Scotty do it every year and consider it spring cleaning.
Holly's financial crisis grows much more dire, and Sarah is consumed with worry and jealousy over Nora's newfound romance as she struggles to get over her own heartbreak from her love affair with Luc. Sarah is joint owners of the property with Holly and Nora. Kevin, Scotty, Sarah,Nora and Kitty are fine. Meanwhile, Justin and Rebecca harbor life-changing secrets from one another, Nora has a secret crush on a younger man, while Sarah and Luc discover that they may not be as compatible as they had hoped. In the final scene, Kitty and Robert's car hits a truck.
Meanwhile, Nora swallows her pride and reaches out to Tommy to help her save the company from the Walkers' longtime nemesis, Dennis York. She finds Nora who tells her she can't get Holly out the car. Robert puts the tape in the safety deposit box and gives Justin the key until he decides what to do. The doctors inform her that her only real chance is to undergo a and she must look to her siblings to find a match. . This scene consisted of Holly, Sarah, Norah and Saul celebrating under the falling water.
The Walker children are all adults in the show, yet they still compete with each other like most siblings. Ryan sabotages the wine storage machines, thereby destroying Ojai's award-winning product and making it impossible for the company to be saved from financial ruin. Meanwhile, Justin has problems with his anatomy class and seeks his professor for help with surviving the semester with his teenage genius lab partner. Then, as they continue to flashback to their younger days, they finally recall the shocking secret and the shameful cover-up that led to York's power play, and are forced to deal with the remorse of a tragic event. Turns out Robert does have these conversations. This power struggle results in many arguments between the two siblings.
Tommy returns once again and stays with his mother as he helps her deal with Dennis York. Nora eventually reveals that she and William had been paying off the family of a young boy who became paralyzed after a fight with Kevin. He refuses to release the tapes because Stanton threatened Kitty, but he will keep them safe. Although Robert promises he is doing nothing dangerous or unethical, once Stanton catches on to what Robert is up to, Stanton threatens to ruin Kitty's career if Robert goes ahead with his information. Meanwhile, an old flame upsets Justin and Annie's comfortable relationshiop; Kevin and Scotty reconsider becoming adoptive parents; and Saul finds forgiveness in his heart for Jonathan. Karl, finds his way into Nora's heart when he helps Sarah and Kitty resolve some old sisterly squabbles; and Paige helps Kevin and Scotty find forgiveness.
Holly tells Ryan that the Coastal Reserve wine spill was not an accident. Nora storms in with some great news: Ryan is a match. The valves on the tanks had been tampered with. Ryan steps into the hospital. Before Robert gets the key, they're interrupted for dinner. It finally dawns on Nora that this is about William. Matthew Rhys plays the role of Kevin Walker, another of the Walker siblings.
Now we also know that the network has ordered 13 new programs, 6 of which will not premiere until mid-season. Rebecca tells Justin that she accepted the job offer. They just have to find a marrow match. Note: This is Ryan Lafferty's last appearance, though Luke Grimes is credited for the role throughout the remainder of the season. I totally thought a car accident was going to happen on the way there. Unfortunately, the family thinks he may have skipped town after his confrontation with Holly. She is an opinionated woman who rarely backs down from a fight.
They're happy and they're fine. After Tommy tries to extract information from York, along with Kevin and Justin, York retracts his offer. The transplant is a success, and Kitty enters. Although the family begins to agree it may be time to sell and let go of the company, Dennis York retracts his offer. Sarah Jane Morris left the series, while Luke Grimes was promoted to starring status as newest Walker son, Ryan, only to be written out mid-season.