Gunsmoke - Season 18 - Eps 20: Whelan's Men
A former lawman that Dillon put out of business years earlier comes back with a group of men to gun him down. Since Dillon is out of town, they settle in at the Long Branch to play poker and wait. Kitty does the only thing she can do. She bets the entire town's wealth and Matt's life against the outlaw's hand.
About Gunsmoke

Title: Gunsmoke
First Air Date: 1955-09-10
Last Air Date: 1975-03-31
Status: Ended
Rating: 6.6/10 (from 102 votes)
Language: EN
Seasons: 21
Total Episodes: 635
Network: CBS
Genres: Western, Action & Adventure, Drama
Production Companies: Filmaster Productions, Arness Production Company, CBS
Synopsis
Gunsmoke is an American radio and television Western drama series created by director Norman MacDonnell and writer John Meston. The stories take place in and around Dodge City, Kansas, during the settlement of the American West. The central character is lawman Marshal Matt Dillon, played by William Conrad on radio and James Arness on television.
Cast

James Arness
Marshal Matt Dillon

Amanda Blake
Kitty

Ken Curtis
Festus

Milburn Stone
Doc

Woody Chambliss
Woody Lathrop