Outnumbered but determined, Deputy Marshal of Tombstone Wyatt Earp (James Garner); his older brother Virgil (Frank Converse), who is the current City Marshal; his younger brother Morgan (Sam Melville (actor)), a Tombstone special police officer; and ally Doc Holliday (Jason Robards), who was made an officer and given a badge for the occasion, confront and clearly get the best of the Ike Clanton gang in a violent shootout at the O.K. Corral in the Arizona town of Tombstone, Arizona.