Kevin, Nora and Kitty go to pick up Justin who has just returned home from the war. McCallister finds that he’s getting closer to Walkers. Meanwhile, the truth is revealed between Sarah and Rebecca and Tommy is not able to get the hang of being a father.

Rebecca worries about Justin, Tommy's marriage hits a road block as Julia starts coming out of her depression. Kevin meets an old flame and Kitty prevents a scandal.

Rebecca's suspicions arise after Justin makes an almost miraculous recovery. Kevin pushes Saul to the edge to get some answers. Nora, Sarah and Kitty decide to go to a spa. Tommy tries to make friends but ends up in an embarrassing situation.

Sarah becomes embroiled in a difficult battle with Joe for custody of their children. Kitty's Halloween announcement has consequences for the entire Walker family.

Kitty gets a visit from an old friend to do some damage control regarding her pregnancy. But it doesn't go as planned. Sarah is struggling with Paige, while Justin is down.

The Walkers unite as Justin's addiction hits an all-time low. Kitty and Robert build new plans for their future.

Kitty and Robert takes dance lessons. Tommy gets a surprise visit and Kevin makes a drastic decision.

Robert and Kitty get married, but not before a political scandal and a severe case of cold feet threatens the wedding. Meanwhile Isaac distracts Nora from her romance with Stan. Holly gets a surprise visit from an old friend and some secrets are revealed.

Secrets are the order of the day when the Walkers gather for a family dinner because Nora is too shy to ask Isaac out on her own. Meanwhile, Becca is trying to play matchmaker for her mother.

Nora and Isaac get closer to each other. Jason makes Kevin to do some soul searching and think about his future.

Rebecca gets a new hobby, while Sarah has to make an important decision.

While Robert and Kitty visit a fertility clinic, Rebecca and Justin decide to have DNA tests to see if they really are related.

In an attempt to solve Scotty's financial issues, Kevin offers to file domestic partnership papers with him. Meanwhile, Nora meets with an interior decorator in an attempt to try and make a fresh start and the Walkers' attend a fundraiser for cancer research.

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 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.