The American West in the 1870s. Specifically 1874, Dodge City, Kansas. As the Transcontinental Railroad connects, it becomes the most heartless frontier of the West, where Texas cattle drivers, outlaws, and bounty hunters converge. In this rough wilderness where Winchester rifles and revolver bullets rule over law and order, only a desolate dust wind blows lonely under the red sunset.

In the middle of the Santa Fe Trail, quite a distance from the town of Dodge City, an old horse that collapsed from exhaustion lies dead, covered in dust. And a woman, whose right leg is hopelessly pinned under the massive weight of the dead horse, is desperately calling for help.

Clara, a blonde woman in a blue calico dress smeared with dust and sweat, reaches out a trembling hand toward the sound of approaching footsteps with a faint, staggering voice.