GOSSIP GIRL Season 3 Episode 1 – Reversals of Fortune Overivew :

As the summer is drawing to a close, Blair and Chuck are madly in love and adjusting to their new “in a relationship” status, breaking all the traditional rules of dating as would be expected. Serena returns from her European adventure with many secrets to hide and a complicated relationship with Carter Baizen. Nate returns from his travels with a mysterious brunette, Bree Buckley (guest star JoAnna Garcia).