Jason McCullough (James Garner), a drifter with plans to move to Australia, stops at the fictitious young town of Calendar, Colorado. As a gold rush town, it's very expensive for the time, so he opts for a temp job -- as sheriff. Why, especially in a brawl-happy town where sheriffs have never stuck around long enough to collect pay, thanks to the Danby clan? Well, for all his casual air, he'd hate for Joe Danby (Bruce Dern, the only surviving actor today) to get away with the murder McCullough witnessed. Besides, he has a quick and accurate draw, which he's kept under wraps to avoid the wrong kind of attention until now.