This Is the Time

Carrie, Mouse, Maggie, and Walt decide to go to their senior prom - at The Waldorf Astoria - together for a final hurrah. Larissa offers Carrie an opportunity that makes her rethink her plans for the next year. Mouse learns a secret about Donna LaDonna that could threaten her reign as queen bee. Meanwhile, Sebastian hides a big decision from Carrie.<br> <br>