Joan plans an elaborate scheme to get revenge on William for the latest in a series of Halloween pranks. Toni is put off when her date asks her to engage in a threesome--with a stuffed animal.

Maya and Darnell plan to renew their wedding vows, and Joan agrees to hold the event at her house. However, Joan constantly disagrees with Maya's choices and tries to mold the event into her own dream wedding. Maya tells Joan that she no longer wants her to be a bridesmaid, and later rebuffs her apology and takes her to task for constantly looking down on Maya. Meanwhile, Toni grows concerned by the tendency for black men to marry outside of their race. She determines that she and Lynn must do what they can to bring William ""back to the fold.""

Darnell is upset with Maya for buying an expensive dress at her friends' behest, and again when she returns it. He sees this as a sign that she doesn't trust him to provide for her financially. Sean has difficulty battling his sex addiction. Joan tries to help him out over the phone, and ultimately flies to New York to see him. He says that having sex only a few times a month is too difficult for him in his condition, and asks her to move to New York. Joan cannot do this, so they break up. Yvonne finally placates William by quitting the police force.

Stan gives Maya an expensive watch for Christmas. Joan tells her to give it back to him, but she refuses. When Darnell sees the watch, Maya claims it is a gift from Joan, leaving him infuriated. Meanwhile, Vosco finally packs up and leaves for good after Lynn criticizes his Christmas present to her--a dog. William is excited about playing Santa for the office Christmas party, but experiences unexpected problems after getting a stain on the suit.

Yvonne accuses William of trying to control her after he surprises her by buying a house for the two of them. Joan objects to the firm's policy regarding Martin Luther King Day, as they insist on remaining open for the day. She goes out of her way to try to change Swedelson's mind about the topic. Maya continues to spend time with Stan, and William warns her about what he sees as Stan's true intentions.

Maya is stunned to learn that her mother has decided to sell her house and move away with her boyfriend. Toni's mother surprises her by coming to town for Joan's Mother's Day brunch. William eagerly anticipates a visit from his mother, who comes bearing a cake from his aunt's award-winning recipe.

Lynn moves in with William, and soon suggests that they take their minds off their recent break-ups by becoming ""sex buddies."" Joan is adamantly opposed to this, and warns that it will soon blow up in their faces. Shelby recommends that Toni adopt a more ""honest"" hairstyle to try to improve her business. Maya has difficulty finding child care for Jabari in the aftermath of her mother's move.

Joan fears she has hit an all-time low after she holds a ""Bring Your Ex"" party, but doesn't get a single phone number. She eventually winds up swearing off men to train for a marathon. Maya still struggles to get Darnell to talk to her after a month apart. William threatens to throw Lynn out of his house unless she lands another job. Toni laments the lack of drama in her life.

Maya and Darnell seek marriage counseling from their minister. They find the counseling pointless, but engage in an afternoon tryst that has an overly enthusiastic Maya convinced that they are going to reunite soon. Lynn finds work as a bartender, despite the fact that she has no idea what she's doing. William tries to prove to Swedelson that he has the toughness required to be a partner in the firm.

Toni objects when Joan plans a birthday party for her. In the midst of their argument, Toni inadvertently reveals that she has been lying about her age for years. Joan and company tease Toni relentlessly about being older, and she grows insecure about her looks. After a disastrous Botox session, Toni seeks the advice of a plastic surgeon--whose only suggestion is therapy. Meanwhile, William winds up falling for a woman who was only supposed to be a one-night stand.

After Lynn's unpaid loan has a negative effect on their credit, Lynn's parents pressure her to get a job and pay them back. Lynn's friends ""help"" her prepare for her interviews--by wrestling her to the ground and forcing her into a wardrobe change, as well as offering emotional support. Meanwhile, Maya hides the truth about her separation from Darnell from her mother.

Maya's cousin Ronnie and his boyfriend, Peaches, tell Maya that they have spotted Darnell in a compromising position with a woman at the Red Lobster. It is the same woman that Joan once saw with Darnell years earlier. Maya confronts Cecily and learns that she is having an affair with Darnell. This leads the distraught Maya to declare that she and Darnell are now ""even"" and move back to the house, where she and Darnell make a decision about the future of their relationship. Meanwhile, William obsesses over the fate of a missing suitcase.

William agrees to dress as Santa Claus on Christmas Eve in the hopes of restoring Jabari's belief in Santa (something that seems to concern Joan just a little too much). However, Monica arranges for him to host the annual Christmas party for the senior partners and important clients on the same night, and pressures him to blow off Jabari and his friends. As they argue, Monica makes a startling revelation about the way the met. Meanwhile, Todd gives Toni a unique Christmas gift: a doll of herself, which has a bizarre effect on her.

Maya befriends a fellow single mother, a janitor at the law firm's building. They quickly make a connection, but Joan finds the woman's attitude irritating; and fears that her example could negatively impact Maya's relationship with Darnell. Meanwhile, William pretends to work at Lynn's office because he misses the camaraderie of a workplace; and Lynn tries to scam her co-workers out of money by pretending it's her birthday.

Maya learns that tuition has increased substantially, and she doesn't have enough money to cover it. William tries to give her the money by pretending she has received it from the firm's continuing education plan, but she turns him down. Lynn housesits for Joan so that her DSL can be installed while she is away with Brock. Lynn claims that she is going to work on a grant proposal for another documentary, but gets nothing done. Joan refuses to let her stay at the house, and Toni and William also reject her. Maya agrees to let Lynn move in for a month if she pays rent. Lynn proceeds to lie around and do absolutely nothing. Maya pays her tuition, but learns that her credits do not transfer and she must start over again as a freshman. She is unbelievably frustrated and breaks down in tears. Lynn annoys Maya by complaining about her own plight and claiming to be depressed. William tells Lynn what Maya is experiencing and convinces her to be more sensitive, and also to take action

Joan's enthusiasm about her new engagement is tempered when she learns that Brock doesn't want to have children, but she decides to relax and just focus on the immediate future. However, the issue continues to gnaw at her. Brock explains that, although his behavior may seem selfish, he believes it is wrong for someone to have children that they don't truly want. Joan tries desperately to change his mind; but he insists that they could be around kids by playing an active role in the lives of the children of family and friends. Joan ponders this for a while, but ultimately decides that she wants to have children of her own. Brock insists that they can have kids, but Joan fears that he would grow to resent her. They have a tearful break-up. William, determined to beat Joan to the altar, proposes to Lynn. He promises to support her financially and let her live at his place. Lynn learns that Joan and Brock have split, but keeps it to herself until after she has married William. Me

Toni is furious to discover that Todd failed to deliver a message from a remorseful Greg before the wedding. Claiming that she needs closure but actually hoping to rub her happiness in Greg's face, she insists that she needs to meet with him. Todd fears that Toni still has feelings for Greg and threatens to leave her if she sees him. Toni declares that Todd needs to trust her; she ignores his ultimatum and meets with Greg anyway. Meanwhile, Joan is devastated when William's nephew/son cries every time she holds him, as she sees it a a sign that she wouldn't be a good mother. After Jabari tells Maya and Lynn that his classmates think they are lesbians, Maya angers Lynn by saying that she wouldn't even be her type.

Maya invites Darnell's girlfriend, Lena, to her Christmas party in an effort to be civil. However, she grows jealous and gets Jalen to pose as her boyfriend. She is also furious when Lena gets Jabari a Game Cube (he wasn't supposed to get one because of his poor performance in school), and accuses the couple of not communicating with one another. Maya later catches Lena with a man at the bar, and winds up in the strange position of trying to help her with her relationship. Meanwhile, Joan gets really carried away while organizing a caroling outing for her friends.

The newly unemployed Joan cannot stand the idea of just sitting back and relaxing, and drives her friends crazy by constantly cooking and knitting for them. She goes to the mall, and winds up taking a job at Wienercycle. Her friends tell her that this is a very stupid idea and convince her to quit. She tries to do this, but is inspired by the teenage shift manager's take-charge attitude and decides to stay and help her. Joan tries to defend her bizarre actions as the result of her work ethic, but experiences a wake-up call when she learns that the manager isn't really as gung-ho about her job as she had appeared to be. Meanwhile, William annoys Toni, Lynn and Maya by flaunting his new $6000 pen. Toni gets revenge by swiping the pen, and the girls enjoy watching William behave like a madman as he tries to find it.

Maya self-publishes her book, Oh, Hell Yes, and sells it on the streets, where it is a tremendous success. Ronnie tells her that a major publisher wants to offer her a five-figure deal to release the book. Toni repeatedly tries to call Todd in New York, but he refuses to return her messages. She continues to act as though nothing is wrong in front of her friends, even when they express concern about her well-being. Lynn gets a new boyfriend, Lenny. Her friends note their physical resemblance and all the things they have in common (including allergies) and offer the opinion that they might be brother and sister. Lynn talks with Lenny's parents, who assure her that this is not the case. She breaks up with him because she is still freaked out at the idea that he could have been her brother, and decides to search for her birth father. William decides not to confess his feelings for Joan, and pursues an attractive woman he meets at the bar. However, he runs into Joan when she stops

Maya's cousin Ronnie is offended after she hires an agent. Upset that Maya refuses to acknowledge his role in her success, Ronnie demands ten percent of her $25,000 advance for writing the book. Joan has an awkward run-in with William and Monica at the cafe. She mistakenly believes that William is bringing Monica to Maya's birthday party, and tries to retaliate by bringing her own date, a boring shoe salesman. Meanwhile, Toni battles constant morning sickness.

Joan's mother makes a surprise visit and constantly criticizes her, particularly anything regarding her decision to open the restaurant. Joan grows fed up with her lack of support and tells her off, prompting Carol to leave. Joan also grows tired of fighting with William about the restaurant. She decides to buy him out to preserve their friendship, but he refuses to accept the check. They discuss his previous love confession, and William angers Joan by saying that he was ""desperate."" A ranting Joan winds up admitting that she tried to go to his New York hotel room to confess her feelings. They kiss and admit their love for each other, but Joan collapses when her mother emerges in a bathrobe. Meanwhile, Maya is concerned when she discovers that Jabari has been watching pay-per-view porn.

Maya has her first book signing, and her friends and family come to the store to offer their support. Joan, Lynn and Toni also read excerpts from Oh, Hell Yes. Maya is surprised and pleased when Darnell stops by to get a copy of the book signed. Although her friends believe she is overreacting, Maya insists that Darnell wants her back and determines that she must make a move on him. Meanwhile, Joan cannot handle being around William in the aftermath of their break-up.

Jabari becomes extremely sullen and disrespectful, and begins talking back to his parents. After he runs away from Joan's house while she is watching him, Maya and Darnell finally learn the source of Jabari's anger: he is upset over Darnell's engagement because he wants his parents to reunite. Maya and Darnell struggle over what to do about their son's despair. Meanwhile, Lynn and Toni refuse to believe that William's depression stems from his car's inability to pass a smog test. They insist that he is actually upset about the break-up with Joan, and pressure him to share his feelings.

Following Darnell's drunken love declaration, Maya enlists the help of Joan and William as she plans to break up his wedding. However, she soon has second thoughts. Joan tries to talk some sense into Darnell in the bathroom. Meanwhile, Toni gives birth to a baby girl before she is able to get in touch with Todd or the girls. Following the surprisingly easy delivery, Toni begins to wonder whether she really needs Todd in her life. Unable to hold back her feelings any longer, Lynn lashes out at Finn and quits the band.

Darnell moves into the apartment across from Maya as they deal with control issues. Toni begins breastfeeding to help her case with Todd.

With Morgan celebrating his first Christmas and Hanukkah, the pressure is on Todd and Toni to figure out his religious upbringing.

After Maya covers the bill for a pricey dinner, Darnell decides to pursue his dream career. William makes a mess when he pitches in with repairs.

Joan and Toni fight when Toni claims Joan's good fortune has made her a bad friend. Williams learns how to play video games.

When Maya moves into her new place, Joan ditches the housewarming for an A-list party. Toni and Todd try to come to a settlement.