In the heart of the Old West, a notorious cowboy bounty hunter Rocks, is hired for the ultimate mission: to find and assassinate the President of the United States during a cross-country train journey. As the train speeds through desolate landscapes, Rocks must navigate a maze of guards to get close to his target. Tensions rise with every passing mile, and the line between life and death blurs. Can the bounty hunter complete his mission, or will he die trying?