Brothers & Sisters - Season 4 (2009)

Sarah distracts Kitty through chemo treatments.

The entire Walker family, except Nora, are literally swept off their feet by the charms and tango lessons of Sarah's new lover, Luc Laurent. But Nora quickly finds that her new French houseguest is a great comfort during a very difficult time. Meanwhile, Robert puts forth his most romantic efforts to distract Kitty from cancer, and Kevin and Scotty stumble on an unexpected surrogacy candidate.

In the throes of chemo, Kitty is thrilled when a surprise visitor comes to town, while Sarah finally realizes that she has to tell her kids about Luc. Meanwhile, with Ryan and Rebecca's help, Holly finds a way to keep her financial future from unraveling, and Kevin and Scotty finally agree on a possible surrogate.

Kitty is devastated when she is faced with the visible ramifications of her cancer treatment, Nora makes a surprising friend with benefits, and Scotty takes stock when his father delivers some shocking news about his marriage.

When Ojai's newest wine is submitted at a local festival, the family hold their breath as they wait to see if the company can be saved. 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.

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. 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.

In typical Walker fashion, Justin and Rebecca's on-again, off-again beachside wedding plans take a shocking turn, while Tommy takes a dangerous risk to assure that his daughter is by his side.

Kitty's life is in jeopardy as the Walkers frantically search for a donor.

A divorced dad at Paige's school piques Sarah's interest.

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.

Kitty's popularity surge creates havoc for her family.

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.

Tommy, Justin and Kevin confront Dennis.

More than one member of the Walker family suspects she might be pregnant, Nora offers to take her aging mother in when it's discovered she has dementia, and Luc gets an exciting delivery in the mail.

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.

The Walkers are heartbroken as they prepare to shut the doors of Ojai Foods for good, but new opportunities and secret alliances develop as a result of the family's loss.

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.