As Lily awaits the consequences of her decision, William van der Woodsen, CeCe and Lily’s sister, Carol, come into town. Unbeknownst to Carol, Charlie has followed her to New York to meet Serena and the rest of the family. Watch free, streaming full episodes of Gossip Girl on cwtv.com. Gossip Girl Video: Watch Gossip Girl full episodes, previews, clips, interviews and more video. Gossip Girl is based on the best-selling series of young-adult novels by Cecily von Ziegesar and executive produced by Josh Schwartz and Stephanie Savage. Gossip Girl is a drama based on the lives of privileged Manhattan prep school teens.