Zap2it's Guide to the Return of 'Gossip Girl'

Serena van der Woodsen
(Blake Lively)

When we first met her: After a year away, S is back in town and starts making her BFF Blair's life hell because everybody LOVES Serena -- including B's boyfriend Nate and LonelyBoy Dan.

How we left her: Despite commitment-phobia, Serena takes the plunge by accepting Dan's undying declaration of love. Later at the airport, she convinces Blair, who's become a Constance Bennett pariah, to stay and fight. Oh yeah, Serena is also getting a new stepbrother: Chuck.