For the first time since her divorce, Sarah has a new romantic interest who understands her all too well. Meanwhile, Kevin and Scotty await the outcome of their first try at surrogacy, and Kitty and Robert are once again at an impasse over politics when Kitty's friend, Buffy, steps in where she doesn't belong.
Robert and Nora get to work as guest chefs in Scotty's struggling restaurant to boost business, Kitty puts her idea to run for Robert's senate seat up for a Walker family vote, and Sarah reaches a point of frustration with Roy but is quickly rewarded for speaking up.
The Walker family shares love and loss on Valentine's Day as Sarah rediscovers the love of her life, Kitty makes a grand but heartfelt entree in to politics with her family and new campaign manager by her side, Justin and Rebecca face the struggles of impending parenthood and Holly makes a tough decision about what to do with her shares of Ojai.
Luc's visa issues cause monumental problems for Sarah, who not only struggles with her feelings for him, but worries that she might lose him again - this time to another woman. Meanwhile, Rebecca wrestles with Justin and with herself to move on after a huge loss, Kevin discovers breaking up with Robert is hard to do, and Holly thinks she has found the hidden value of Ojai Foods.
In an effort to get to the root of the secret that William's nemesis, Dennis York, holds over their heads, the Walkers recall their memories, both good and horrifying, of their family's days at Ojai Foods in 1986.
As they continue to flashback to their younger days, the Walkers 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. Meanwhile, Nora and Holly take an uncharacteristic trip, a la "Thelma & Louise," to search for answers about Ojai's hidden worth, and Justin and Rebecca finally get their happily ever after.
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, and Kevin struggles with his newfound unemployed status.
As the Walkers try to cope with the sadness and financial ruin that lingers as a result of the closure of Ojai Foods, they discover a small ray of hope in one of William Walker's many secret investments. Meanwhile, Robert's health and the safety of his family are compromised when he finds himself in way over his head in a subversive business deal, and newlyweds Justin and Rebecca consider a trial separation.
It's been a year since the Walker family was torn apart by a tragic car accident, and in a very un-Walker like fashion, everyone has been avoiding everyone else. Truths and reality only start to set in when the family is forced to come together for Justin's homecoming party: Nora tries to prepare for the party, but is not acting like the mother she used to be; Sarah is consumed with the Narrow Lake deal; Kevin has a new career as public defense attorney; Saul and Scotty are running their restaurant; and Kitty's life has become a taboo subject for everyone.
The Walkers attend a swanky launch party for Luc's underwear advertising campaign where 14-year-old Paige falls in with the wrong crowd; despite several visits from Justin, Holly still struggles to remember the things that were once most important to her; Kevin is saddled with a runaway juvenile delinquent; and just as Nora very publicly admits that she's taken a part-time job as a florist ,she's approached by a radio show producer with a job offer.
Kitty continues her stay in Ojai, trying to reinvent herself, when she meets a handsomely rugged handyman, Jack. As Kitty fakes her persona to seem like a local, she winds up in a situation that proves that honesty usually is the best policy. Meanwhile, the rest of the Walkers are in on a little surprise birthday celebration for Sarah; what they all don't know is that Sarah has been lying to Luc about her age to appear younger.
Justin and Rebecca reach an impasse in their relationship; Holly has a breakdown over her inability to remember her own daughter; Sarah struggles to keep up with the Joneses when Cooper lands the lead role in "Romeo & Juliet"; Saul takes a huge risk to make a romantic connection with a dear friend.
Nora's motherly skills and advice catch the attention of a radio producer who invites her to audition for a new show. But when Nora follows through with the invite, she suddenly finds herself out of her league, competing with a famous personality, Dr. Alexandra Kirby. Meanwhile, as Kevin and Justin go through some life lessons of their own, Kitty heads back into the dating game with her Ojai handyman, Jack.
Everyone in the Walker family is willing to forgive and forget Scotty's infidelity. But when the family all put their best foot forward to help them reunite, things end up in a fist fight. Meanwhile Jack is reinvigorated by being back in the city and starts to pursue new ventures, but Kitty can't seem to picture herself in this new life, and Sarah and Luc share some exciting news with the family.
Justin suddenly takes a much more keen interest in Holly's recovery after a nurse at the hospital catches his eye; Nora's fellow radio host, psychiatrist Dr. 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.
Both Kitty and Nora very reluctantly make new romantic connections in unexpected places, Kevin's nerves about the adoption drive him to a disastrous bout of overindulgence, and Sarah's plans to spend one last romantic night alone with Luc go horribly awry.
With the holiday season come panic and discord in the Walker family when Nora takes a last minute getaway with Karl. Saul has a chance encounter with a past love, guest starring Richard Chamberlain as Stephen, who he believes had a lasting and very permanent effect on his life.