Joan causes a dispute between herself and Aaron after purchasing an expensive kitchen range for their new house and not discussing it over with him. After they defuse their feud, Aaron receives unexpected news. Meanwhile, Lynn begins to flaunt her success with her progressing music career. Golden Brooks, Reggie Hayes, Keesha Sharp and Khalil Kane also star.

Joan runs away to Mexico with Aaron in attempts to keep him from leaving to Iraq. While in Mexico, Aaron realizes that he cannot run from the war and the two of them decide that they should get married before he departures. Meanwhile, Maya automatically assumes that Jabari has been using marijuana when she finds it in her home. Also, Lynn reaches another milestone in her music career, but she doesn't feel comfortable celebrating because of Joan and Aaron's problem.

Lynn must decide whether to perform at a rally to raise awareness to save the environment; requested by a student she met at UCLA, named Xander (guest star Quddus Phillipe) or perform at the House of Blues, where her manager booked for her to perform. Meanwhile, After hearing Jabari use the \"b\" word, Maya gets upset with him and Joan enlists William assistance when she hears strange noises coming from her crawlspace. Keesha Sharp and Khalil Kane also star.

While experiencing writers block, Maya avoids her manager as her deadline approaches to complete her second book. Later, Maya learns that there may be some complications with her pregnancy and the doctor advises her to take it easy, but Maya doesn't comply. Meanwhile, Joan has a hard time getting Lynn to rent her apartment. Also, William and Monica realize differences in their relationship. Khalil Kain also stars.

After having her miscarriage, Joan and Lynn worry that Maya is in denial and not dealing with her grief when Maya suspects Darnell of blaming her for it. Also, William and Monica prepare for their first dinner party. Meanwhile, Joan tries to persuade Lynn to finally open up a bank account.

After still being convinced that Maya is not dealing with her loss, Joan decides to take Maya on a shopping spree to help her recover but surprisingly, Joan realizes that she is the one who needs therapy because of Aaron departure to Iraq. Meanwhile, Monica tells William that she is pregnant but his reaction is unlike she expected.

Joan, William and Maya try to dispel Lynn's comment about them being old by going out to local clubs with her and trying to keep up with the younger crowd. Meanwhile, Lynn runs into Xander (guest star Quddus Philippe), who is still mad at her for canceling her performance at a rally raising awareness to save the environment.

William considers leaving the firm as he feels disrespected at work. Maya starts to write a neighborhood newsletter as Joan feels Lynn doesn't like her housewarming gift.

Joan holds a fund-raiser to earn money for a holiday party for the support group of relatives for the soldiers in Iraq. Meanwhile, Monica learns of William's holiday traditions.

Maya and Darnell consider adopting a child while a neighborhood meeting presents them with the chance

William and Monica battle over learning the sex of the baby. Lynn deals with the fact she might not be marketable to Blacks.

Maya helps Joan try to reach Aaron's kids, as she tries to read them a letter Aaron wrote to his students. William tries to teach Jabari how to drive