Gossip Girl (2007-12) - Series 4: 7. War at the Roses

Name: Gossip Girl (2007-12) - Series 4: 7. War at the Roses
Description: Blair is caught off-guard by a surprise guest at her birthday party. Having had enough of Chuck and Blair's games, Serena and Nate decide to plan an intervention.

Blair is caught off-guard by a surprise guest at her birthday party. Having had enough of Chuck and Blair's games, Serena and Nate decide to plan an intervention.