After discussing how to handle change, Carrie is challenged to be “sexually” open on Che’s podcast, Miranda has a disastrous first day of school, and Charlotte tries to impress a fellow mom. And then – another big change no one saw coming.

Miranda and Charlotte come to Carrie’s aid, proving what good friends are for. Anthony and Stanford vow to let go of petty arguments.

Carrie learns of a surprising development involving Big’s ex. Charlotte worries about how to handle a daughter’s revelation. Miranda ponders the state of her marriage.