Carrie has an awkward meal with Petrovsky’s ex-wife and begins to wonder if she can ever live up to his ex. On the streets, Carrie meets some of her fans who want to throw Carrie a party. In New York, Samantha drives Smith away when her sex drive begins to fade, but Smith lets Samantha know that he has strong feelings for her, even when she has no sex drive. Charlotte and Harry finally receive good news about their adoption. Steve and Miranda agree to let his mother live with them after she has a stroke. Back in Paris, Petrovsky ends up slapping Carrie during a fight, and runs into Big, who is there to help her pick up the pieces.
Before leaving for Paris, Carrie runs into Big and tells him that she wants him out of her life. After one last dinner with the girls, Carrie leaves for Paris. In New York, Samantha speaks at a breast cancer benefit and Charlotte goes to Carrie’s in search of an adoption recommendation, but ends up talking to big instead. After talking with Miranda, Samantha and Charlotte, Big decides to go to Paris after Carrie.
At a dinner party, Petrovsky breaks the news that Carrie is moving with him to Paris, and Miranda doesn’t take the news well. A death at a party causes Carrie to re-examine her life, and the girls’ lives, in order to make a decision about Paris.
Carrie and Petrovsky’s relationship continues to fall apart. In order to prove that Smith is not gay, Samantha tapes them having sex and “accidentally” leaks it to the press. Meanwhile, Charlotte enters her dog in a dog show and Miranda has a hard time adjusting to her life in Brooklyn.
Carrie and Petrovsky have dinner together, but Carrie walks out on him when he talks about a friend he had that died of cancer. Samantha’s treatments go well, except for the fact that her hair starts to fall out. Smith helps her feel better when he shave his head, and the two go out together, both bald. Charlotte and Harry continue to have trouble conceiving, and Charlotte ends up adopting a dog. Meanwhile, Steve and Miranda look at houses in Brooklyn after they both feel that the apartment is too cramped.
Carrie learns that Petrovsky has a 22 year-old daughter and doesn’t want any more children, leaving Carrie to wonder if she’s willing to give up children for Petrovsky. At her cancer treatments, the male physician offends Samantha, so Samantha sets out to get on a female doctor’s schedule. Miranda and Steve leave for their honeymoon, but the location Steve chose drives Miranda crazy. Brady is left in the care of Carrie and Charlotte, and Charlotte stresses out the entire time.
Carrie’s relationship with Petrovsky continues to go well, but his extravagant gifts become too much for Carrie. Steve and Miranda decide to get married and begin to plan their wedding. Harry tries to be romantic by taking Charlotte to a fancy French restaurant, but the gesture is lost when they both come down with food poisoning. Samantha decides she wants breast implants but receives startling news from the plastic surgeon.
Carrie and Aleksandr sleep together, but Carrie is surprised when she wakes up to find that Aleksandr uses his apartment for his business. Charlotte continues to recover from her miscarriage and volunteers with the blind to take her mind off things. Steve moves back into Miranda’s apartment, but having Dr. Leeds living in the building makes Miranda uncomfortable. Samantha discovers that Smith’s feelings are true, but only after she has an affair with Richard.
At an art exhibit, Carrie meets Aleksandr Petrovsky, an artist, who soon asks her out. Charlotte is devastated when she and Harry finally conceive, but she miscarries. Robert tells Miranda that he loves her, through cookies, making Miranda think that she may never be able to express her feelings. However, this proves to be untrue at Brady’s first birthday party. Samantha finds gray hair ‘down there’ and dyes it to cover up the grays, but the dye job goes bad.
Big returns to New York for a angioplasty and Carrie is upset when she hears the news. However, after the surgery, Carrie does her best to help Big recover. Samantha and Smith’s relationship becomes awkward when Smith tries to hold Samantha’s hand while they’re in public. Meanwhile, Miranda stresses over how to tell Steve about her new relationship, but Steve finds out for himself when he walks in on the two. Charlotte decides to try Eastern medicine to help her problems with getting pregnant.