The West Wing - Season 5 - Eps 20: No Exit
An airborne contamination alert locks down the West Wing, forcing staffers to stay put until the all-clear is sounded; Toby and Will face off over Will's working for the vice president; C.J. tells Donna some things she's rather not hear about Josh and her career prospects; Leo confronts Abbey about the dangers of her recent coping mechanisms; Jed, Debbie, and Charlie are poked, prodded, and sent to the decontamination showers; Kate is initially reluctant to give Josh any information on a personal or professional level as they sit out the alert together.
About The West Wing

Title: The West Wing
First Air Date: 1999-09-22
Last Air Date: 2006-05-14
Status: Ended
Rating: 8.3/10 (from 506 votes)
Language: EN
Seasons: 8
Total Episodes: 154
Network: NBC
Genres: Drama
Production Companies: John Wells Productions, Warner Bros. Television
Synopsis
The West Wing provides a glimpse into presidential politics in the nation's capital as it tells the stories of the members of a fictional presidential administration. These interesting characters have humor and dedication that touches the heart while the politics that they discuss touch on everyday life.
Cast

Martin Sheen
President Josiah Bartlet

Allison Janney
C.J. Cregg

John Spencer
Leo McGarry

Bradley Whitford
Josh Lyman

Joshua Malina
Will Bailey

Alan Alda
Arnold Vinick

Jimmy Smits
Matthew Santos

Kristin Chenoweth
Annabeth Schott

Mary McCormack
Kate Harper