On her first day at Columbia, Blair attempts to gain membership into an ultra-exclusive social club, Hamilton House, but she's in for a few big surprises. Serena begins to suspect that Juliet is intentionally sabotaging Serena's life and that it may have something to do with Nate. Rufus is worried about Dan and decides to take matters into his own hands.
Spoilers ahead. Coverage follows the scope labeled below.
Complete story — includes the ending
Serena and Blair try to join a prestigious sorority, but are thrown for a loop when they learn Juliet is the head of the house. Returning from St. Barts, Georgina finally comes clean about Milo. Not ready to face what he did last spring and in his high school past, Chuck is hesitant about introducing Eva to Lily, Rufus, and Eric. Title reference: The 1995 film The Underneath.