List of Brothers & Sisters episodes

After being offered a co-anchor position on a political talk show, Kitty moves back to Los Angeles to live with her parents. At a family dinner, her four other siblings and father convince Kitty to reconcile with her mother whom she had a falling out with prior to her departure. Patriarch William suffers a heart attack and dies.

The family attends William's funeral and hears the reading of his will. Justin meets up with Holly Harper at the funeral and inquires how she is related to his father. Newly installed President, Sarah learns of the family business' financial woes. Justin is arrested and Nora and Kevin must bail him out.

The family learns of William's infidelity with Holly at a dinner thrown by Nora. Kitty becomes closer to her co-anchor Warren which is disrupted when Jonathan flies in from New York to see her.

Sarah and Joe learn that Paige has diabetes. Tommy gets Justin a new job as a bellhop but begins drinking on the job. Kitty must make a decision between Jonathan and Warren. Kevin is forced to join his mother at a golf outing honoring their father instead of going on a date with Scotty.

Kitty arranges a disastrous double date with Jonathan, Warren and the talk show's new intern, Amber who Kitty suspects Warren slept with. Jonathan tries to help Sarah, Saul and Tommy with their financial crisis at the company. Nora goes on her first date in over thirty years with her repairman, David (special guest star Treat Williams). Tommy is still not talking to Justin.

Nora requests that the entire family attend a charity banquet which she has coordinated. Sarah is prompted by her mother to give a larger donation this year which causes a discussion on the company's missing funds. Nora is suspected of cheating with another friend's husband.

In order to stabilize some expenses, Sarah proposes that the family sell their vacation ranch in Ojai. Unknown to each other, this prompts each family member to escape to the ranch for the weekend each with different objectives and believe they will be alone with their significant other. While in the attic, Sarah finds a mysterious baby photo.

Justin receives a letter from the U.S. Army stating that he must return for active duty. Fearing for his life, Justin ponders fleeing the country. Sarah has trouble making her stepson Gabe feel more part of her family. Nora sleeps at David’s house much to the shock of her children. Saul and Sarah try to crack a password for William’s account and inquire from Holly information about her daughter, Rebecca. The family recalls September 11, 2001 and Justin’s decision to enlist.

Kitty puts herself in an awkward position when she asks Senator Robert McCallister (special guest star Rob Lowe) for a favor in return for a non-confrontational interview over his personal life. The family gathers at the hospital after finding out that Justin has attempted suicide by drug overdose. Sarah, Tommy and Kevin take a road trip to Nevada to find their father’s vast and lucrative land. Nora recalls the time when Justin enlisted.

At Paige’s suggestion, Saul and Nora plan a Hanukkah dinner in addition to celebrating Christmas. Kitty ponders her options after being offered a job on Sen. McCallister’s staff and her own talk show sans Warren. Sarah, Tommy and Saul try to get over on Holly who is a partner in the William’s land in Nevada. Justin is granted a six-month reprieve by an army official after fighting in court.

Justin enters rehab and is requested that his family join him for a group therapy session once a week. Kitty joins Sen. McCallister’s staff. Nora and Holly both desire an office at Ojai Foods.

Kevin considers a relationship with a soap opera star (guest star Jason Lewis) who is confused about his sexuality. Kitty inquires about a dating service so that Sen. McCallister’s staff will not think she is trying to pursue him. Nora goes out on a date with a gay man who is seeking companionship. Sarah becomes jealous when Joe begins spending time with a younger woman who is taking music lessons with him.

In the midst of Nora’s 60th birthday party, several family members are ill with the flu and Joe and Sarah’s sex tape inadvertently ends up on Nora’s birthday tribute video. Also Saul and Nora’s mother Ida (special guest star Marion Ross) arrives early and ruins the "surprise" essence of the party.

Kitty finds it hard to resist Senator McCallister on Valentines Day. Justin hooks back up with Tyler. Nora spends the night in jail due to her friend's 'peer pressure'. Kevin is secretly hooked up with Scotty, which leads into a disaster. Sarah is proposed once again by Holly for the Wine business.

Sarah and Joe enter couples' counseling. Kevin learns that Chad broke up with Michelle and that he has a history of dating members of both sexes. Tommy wants Sarah to buy his shares of Ojai Foods so that he may focus on the wine business with Holly. Staffers take a poll on Kitty's relationship with Sen. McCallister. Julia is revealed to be carrying twins.

News of William's other child, Rebecca is finally revealed to members of the Walker family including Nora who is devastated. Kevin tries to fight off an online tabloid writer who continues to taunt Chad about his sexuality. Sarah gets revenge on Holly by revealing to Rebecca about her origins, which causes a rift between Rebecca and her mother, and in turn results in Sarah and Holly declaring war on each other. Justin tries to connect with Rebecca.

Nora invites Holly and William's daughter Rebecca for dinner to welcome her to the family. Nora reunites with her college professor (Peter Coyote). And Sen. McCallister has a planned surprise.

Sarah joins Kitty on a trip to McCallister's hometown where she is assigned to interview his acquaintances including his high school sweetheart. Nora contemplates going on a date with her professor. Justin goes to a party with Rebecca. Chad comes out but breaks it off with Kevin.

Kitty sets Kevin up on a date without telling him that it's with the republican Senator's gay brother. Kevin ruins the date by going on a rant against the Senator. Kevin and the Senator both blame Kitty for the date. Nora and Kitty set up a game night against a rival family they lost to years ago. Rebecca is invited by Sarah to come. Rebecca loses the game for the Walkers. The day after, Rebecca tells Justin that Joe, Sarah's husband, kissed her. Guest stars include Susan Sullivan and Jenna Elfman who in Dharma and Gregg played motherlaw and daughter in law.

A horrified Rebecca tells Justin in confidence that Joe made a pass at her. Professor August blackmails Nora with a failing grade into going out with her on a second date. Kitty attempts to help McCallister relax but then must help him comfort staff workers after a helicopter crash kills one of his campaign speechwriters. Holly reveals to Sarah shocking news about the jeopardy of her marriage.

Tommy Walker plans a party for the opening of his new vineyard. At the party, Holly gets involved with Mark, in which begins a Nora/Holly food fight.

Julia gives birth to the twins prematurely, and she and Tommy are forced to make a difficult decision when one of the babies faces life-threatening complications. Kevin reluctantly helps Kitty deter a blackmailer who is threatening to reveal damaging information about Senator McCallister to the press.

For the last episode of the season, Nora plans an engagement party for Kitty. Kitty announces she will be moving out, and Justin goes to Iraq. Saul is forced to confront unresolved personal issues when he unexpectedly runs into an old friend who has recently come out as gay.

A year after losing their larger than life family patriarch and three weeks since hearing from Justin in the Middle East, the Walker family struggle to find cheer in celebrating Kitty's birthday.

Sarah fights to salvage what's left of her failing marriage; Kevin learns the hard way about the sacrifices that true love brings; Tommy is at a loss as to how to provide the emotional support needed by his overwhelmed wife, Julia, after the death of their newborn son, while Kitty gets a first hand look at the challenges of being engaged to a U.S. senator (Rob Lowe as Senator Robert McCallister).

Robert enlists the help of a musical icon (guest starring Lyle Lovett as himself) to fend off Kitty's bout of cold feet. Nora reconnects with a man from her past (guest star Chevy Chase) and Sarah has mixed emotions about agreeing to have dinner with a new business consultant.