GSI Presents: Gossip Girl – Season 4 Episode 5 – Goodbye, Columbia – 10/11/2010 

An anonymous Gossip Girl blast with a very damaging rumor about Serena is sent. Meanwhile, Blair decides to take a class with a powerful businesswoman, Martha, who is guest-lecturing at Columbia, but someone hijacks her plans and...
parole chiavi: Televisione, Gossip Girl, s04e05