Ep 13. G.G.

Blair is still struggling with the aftermath of her engagement break-up and is determined to move on with her life. She hosts a fashion show for her mother's company, but things don't go as planned when her models fall ill with a stomach virus. Meanwhile, Chuck is working with his father's business rival to overthrow his father's company. The tension between Chuck and Blair only escalates when Blair finds out about Chuck's suspicious activities. Serena is also up to her usual antics - dating Dan again and trying to mend her relationship with Blair. However, things take a turn for the worse when Gossip Girl threatens to reveal everyone's secrets in a shocking twist.