Plot summary
After being exposed as his wife's killer, Russell decides to take something precious of Chuck's, which leads to a tense standoff. Old friends and foes return to New York and are looking to get into trouble. After learning Charlie's secret, Serena and Vanessa join forces to find Charlie before it's too late, however, little do they know that Charlie has one more trick up her sleeve. As the summer approaches, someone receives life altering news. Title reference: The 1973 The Long Goodbyefilm The Long Goodbye.
Credits
Adapted from Wikipedia contributors, Gossip Girl season 4. HTML formatting and reference markers removed.