What's Thanksgiving without a side of drama? Serena and Dan throw their first Thanksgiving together, but everyone seems to havetheir own agenda.

Cast: Blake Lively, Leighton Meester, Penn Badgley, Chace Crawford, Ed Westwick, Kaylee DeFer, Kelly Rutherford, Matthew Settle, Sofia Black-D'Elia, Robert John Burke, Zuzanna Szadkowski, Barry Watson, Michelle Trachtenberg, Liam Campora, Tyler Evans