As Sarah and Luc’s nuptials approach, plans go horribly awry and the Walkers learn several surprising lessons about the real meaning of family, on the Series Finale of “Brothers & Sisters”.

As the Walkers welcomes in a new life, they must also face the terror of losing one of their own. Meanwhile, Rebecca asks her father for help when she comes across new information that may spell disaster for the company.

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. 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. 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.

Parenthood is questionable for more than one member of the Walker family, as Justin keeps a closely guarded secret about the true paternal identity of one of his siblings and Scotty makes a shocking discovery that will bring a new life into the Walker family fold.

Nora organizes an engagement party for Kitty and Robert. Justin is about to be deployed to Iraq, and he tries to have special time with his family members to say goodbye. Kitty finds it hard to tell her mother that she will be moving out. An old friend of Saul's visits after his divorce.

The Walkers encounter some conflicts in the schedules on Thankgiving; leaving Nora & Sarah alone to celebrate; Elizabeth endures a medical emergency that brings the family together.

As the Walkers welcomes in a new life, they must also face the terror of losing one of their own. Meanwhile, Rebecca asks her father for help when she comes across new information that may spell disaster for the company.

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.

Though Nora tries her best to keep Brody at bay, she can’t help but feel the long lost connection between them, and Justin reaches out to a homeless vet reluctant to accept help getting back on his feet.

After Sarah confronts Brody about his being her father, she decides she no longer wants him to be a part of her life or Nora's, but Nora just can't seem to let him go. Meanwhile, Olivia struggles with the new addition of baby Daniel to the family.

Kevin and Scotty make a commitment to be life partners; Saul finally comes to grips with his identity in a public way; the family discovers that William kept yet another painful secret from them.

In the wake of a medical crisis, Robert continues strong on his campaign for governor. Meanwhile, Saul and Sarah work to hide Tommy's legal problems from Nora.

Out of patience waiting for Tommy to return home, Julia makes a life-changing decision about the future; Robert discovers what Kitty has been keeping from him; Holly & Sarah finally find balance in their relationship.

As Robert worries about news of his recent heart attack leaking to the press, Kitty struggles with an untold secret that will deeply affect their marriage and bring the Walker family together like never before. Meanwhile, Kevin and Scotty discuss the real possibility and challenge of surrogacy.

After returning from France, Sarah manages to distract Kitty through her chemo treatments by using tales of her romance with a French artist. Meanwhile, Justin has problems with his anatomy class and seeks his professor for help with surviving the semester with his teenage genius lab partner.

The Walker family, with the exception of Nora, are surprised by the charms and tango lessongs of Luc Laurent, Sarah's new lover. However, Nora quickly uncovers that her French houseguest is a very good comfort during a very difficult time. Meanwhile, Robert needs to distract Kitty from the cancer, and he uses his most romantic efforts into the situation.

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. 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. 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.

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.

Nora finally gives in to her feelings for Brody, which leads to a spontaneous romantic getaway. Meanwhile Sarah and Luc closely consider growing their family, and a chance encounter with Michelle raises Scotty's suspicions about her whereabouts for the past several months.

The Walkers find out about William's biggest secret: his other daughter with Holly.

After an international business deal goes bad, Holly becomes the saving grace for Ojai Foods; Justin delivers heartbreaking news about a family member; Saul makes a confession; Scotty and Kevin share a life-changing moment.

Kevin and Justin take Tommy on a trip in order to help him make a decision about his future. Meanwhile, Kitty and Evan head to Nora's to meet the new half-brother.

When Kitty & Robert reach a crossroads in their marriage, she is forced to reflect on her father's past indiscretions and decide what's most important in life. Meanwhile, Ryan makes a discovery about his mother's death and takes a huge leap in the wrong direction to vie for Rebecca's affection.

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; and Kitty struggles with an affair of the heart.

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.