When the Greendale Glee Club is unexpectedly sidelined, the school's effervescent choir director Cory Radison sets about recruiting the study group members to fill in. Skeptical at first, they eventually…

The family puts together a quick Christmas celebration when they realize they won’t be together on the actual day.

On a tipsy whim – and against Mike's wishes – Frankie decides to throw a Christmas Eve party at the house; Mike buys Frankie a much needed new dishwasher for…

The quaint town of geniuses is transformed into animated versions of themselves. Sheriff Carter and Allison Blake are secretly planning the perfect holiday surprise for their kids. But a mysterious…

Holiday Special: Pete is hit in the head by an artifact and wakes up to a life where he was never born. Pete must hunt down and persuade the Warehouse…

When Castle and Beckett wake up in bed, handcuffed together, in a locked room with no memory of how they got there, they must piece together the mystery of where…

Robin receives bad news and decides to hide it from the gang. Marshall hangs Christmas decorations in his house in the suburbs with some help from his neighbor.

Carrie and Saul identify Walker's contact in Washington but their target has diplomatic immunity; Brody is approached to run for a disgraced congressman's seat in the House of Representatives.

A routine arbitration turns into a battle of wills between Alicia and Louis, but the pair makes an unexpected connection when a personal crisis interrupts the proceedings.

Jeff and Shirley bond over foosball. After Annie breaks Abed's special edition DVD of "The Dark Knight", she covers it up by staging a robbery.