The girls meet for lunch to catch up and Carrie reveals that she and Aidan have exchanged keys to each other's apartments. When Carrie goes home she's touched to find Aidan cooking in her never before used kitchen. She also discovers that her computer has crashed and she can't access any of her files. Aidan chastises her for not backing up her material. They bring her computer in to a repair shop and the techie tells her it doesn't look good.

Miranda has to go to Philadelphia because her Mom has had a heart attack. The next day her Mom dies. Miranda calls Carrie to let her know and trying to be strong fights back tears. Charlotte, who has become a regular Martha Stewart, takes charge of getting the best funeral fruit basket and flower arrangement. Samantha has trouble dealing with the news of the death and can't bring herself to call Miranda. Instead, she gets together with her latest man, Nick, a NYU wrestling coach who had been teaching her new positions. However, this time, no matter what moves they try, Samantha can't orgasm. The next day, determined to get off, she pulls out her trusty vibrators but no luck. Miranda goes shopping for a funeral dress and after screaming at the lingerie saleswoman, she breaks down and cries in the woman's arms.

Aidan surprises Carrie with a new laptop computer and zip drive but Carrie isn't happy about it. She's used to taking care of herself and can't handle the implications of his gesture. They argue and Aidan gives her back her keys. Back at the computer repair shop, Carrie learns that she needs her "motherboard" replaced. She calls Aidan and admits that she's scared to let him in, in case they fall apart.

The girls go to the funeral in Philadelphia and offer Miranda their full support. In the middle of the funeral, Samantha starts crying and finds the release she really needed. She finally says, "I'm sorry" to Miranda. Back home, Carrie lets go of her fears and starts using the zip drive that Aidan gave her.

Steve is feeling insecure, less manly and lopsided with only one ball left. Trey's manhood is also challenged when Charlotte tells him he needs to get his sperm tested since she hasn't gotten pregnant yet. Big is depressed because his new movie star girlfriend is dissing him and he calls Carrie for support, which angers Aidan. Carrie realizes that Aidan still feels threatened by Big. She wonders: Are men just women with balls?

Samantha gets an appointment with ball-buster hotel magnate Richard Wright and tries to win an account. He tells her she would need to work with a partner - a male partner. Samantha realizes he just doesn't want to hire a woman.

Up at Aidan's country house, Carrie gets another call from Big, who is so distraught he says he'll drive up there to talk with her. Aidan fumes when he finds out. Big arrives, gets drunk and has to spend the night. The next day, Carrie tells Big he has to make friends with Aidan. When he goes out to apologize to Aidan, the two end up wrestling in the mud. With the testosterone tension broken, the two bond as Big confides in Aidan about his girl problems.

Samantha returns to Richard Wright and though Richard admits she's the best person for the job, he says he won't hire her because she slept with his architect. Samantha tells him off and then runs into the elevator as she's about to start crying. The next day, Richard hires her, saying he's impressed with her "balls."

Steve tells Miranda that he's interested in getting a testicle implant and they visit a specialist. They find out the procedure is still in clinical trials and Miranda tells Steve to forget about it. Miranda tries to help Steve heal emotionally but she realizes that what Steve needs is a woman who wants to have sex with him. So, she takes him to bed.