High society and low blows are back as Gossip Girl continues for its much-anticipated fourth season. Last season ended with a bang as a heartbroken Chuck Bass (series star Ed Westwick) lay bleeding in the streets of Prague while Blair Waldorf (series star Leighton Meester) and a newly single Serena van der Woodsen (series star Blake Lively) jetted off to Paris for a fabulous summer abroad. Meanwhile, Nate Archibald (series star Chace Crawford), fresh off his painful breakup with Serena, decided to take a page out of Chuck's playboy playbook just as Dan Humphrey (series star Penn Badgley) discovered he was going to have to settle down and be a father....