The Walkers' plans to celebrate Valentine's Day go horribly wrong when Tommy tells Sarah about another secret that Nora has kept buried since they were kids, and Saul's hopes for a romantic evening with Jonathan are dashed by a visiting high profile food critic.

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.

Nora and Sarah fly out to Washington DC to "surprise" Evan for his birthday, but what they're really after is the truth behind Kitty's extended trip to the east coast. Meanwhile, Kevin and Scotty are thrilled to have officially signed the papers to be Olivia's parents, but the excitement quickly fades when Olivia seems a little nervous about moving in and starting a new life.

When Olivia's brother shows up and sets out to gain custody of her from Kevin and Scotty, the Walkers struggle amongst themselves to determine what's best for Olivia.

Emotions are running high in the Walker family when Nora and Saul find out their mother, Ida, has passed away.

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.

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.

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.

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”.