SUN, APRIL 7 | 11PM ET

James Garner, Jason Robards, and Robert Ryan star! Sure, the Earp brothers won the fight at the O.K. Corral. But revenge never dies when the Clanton gang is involved. They’re on a mission to wipe out the Earp clan and avenge their lost gang members. But two men now stand in their way: Wyatt Earp and Doc Holliday.

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Hour of the Gun

James Garner, Jason Robards, and Robert Ryan star! Sure, the Earp brothers won the fight at the O.K. Corral. But revenge never dies when the Clanton gang is involved. They’re on a mission to wipe out the Earp clan and avenge their lost gang members. But two men now stand in their way: Wyatt Earp and Doc Holliday.