Watch Gossip Girl Season 4 Episode 19 online via TV Fanatic with over 7 options to watch the Gossip Girl S4E19 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, Netflix, YouTube Purchase, Google Play, and Verizon On Demand.
|YouTube Purchase||Watch Now|
|Google Play||Watch Now|
|Verizon On Demand||Watch Now|
Serena enlists Charlie to go undercover Gossip Girl-style to determine why Dan and Blair are spending so much time together. Chuck makes a devastating discovery of his own.