Leonard confronts his fears when he's contacted by a bully who tormented him in high school

Izzie tries to get George to find the courage to ask Meredith out. All of the interns are in awe when a woman comes in with a record breaking tumor, but it is so far advanced that the woman's prognosis is not good. No...

Items appraised include a collection of letters and pilot licenses signed by Orville Wright; a 1930s Jennings Bronze Chief nickel slot machine; and a Model 1830 percussion musket from West Point Military Academy.

A trip to Costa Mesa, Cal., has Dave reuniting with his estranged brother, who shows him a unit filled with rock memorabilia. Also: an old slide projector.

In the seventh-season finale, Silas turns the tables on Nancy as Shane tries to keep her out of harm's way and the clutches of Det. Ouellette. Meanwhile, Doug schemes to keep alive his hedge-fund scam

Locke devises a new strategy; Jack's group searches for Desmond.

Lily hosts a bash so Charlie can make her formal debut in New York society, but Max puts Charlie's upper-crust future in jeopardy. Elsewhere, Dan considers admitting his true feelings to Blair.

As the holidays approach, New Directions is asked to go in two directions at once: The glee kids have been invited to two events scheduled for the same time.

Emotions run high as the harrowing day climaxes with resolute President Taylor closing in on a world-changing peace treaty and a vengeful Jack Bauer taking matters into his own hands for one last and unforgettable job.