Valerie Cherish, a former B-list sitcom star, is so desperate to revive her career that she agrees to star in a reality television show called The Comeback.

Will acclaimed sex columnist Carrie get back together with Mr. Big or will she end up with Aidan? Will Charlotte and Trey be able to live happily ever after? Will Samantha and Miranda ever commit to anything that resembles a lasting relationship? Find out in the eighteen shows of season four.

We find Carrie, Samantha, Charlotte, and Miranda four years after the series ended.