The West Wing - Season 4 - Eps 20: Evidence of Things Not Seen
The White House is locked down after a gunman on the street fires shots into the West Wing; Josh interviews a candidate to replace Ainsley Hayes; Bartlet negotiates for the return of a spy plane is forced down over Russia; the staff plays poker.
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