Trouble follows horse trader Will Summers as soon as he sets foot in Dark Horses, Mexico. A party of men is intent on hanging Summers, believing him to be a horse thief, but not before they take him to their boss--Ansil Swann, the very man Summers is delivering four horses to.

Will is saved from the hangman's noose when the men are waylaid by Ansil's beautiful wife, Bailey. Only Bailey has an agenda of her own, one that lands Will right in the middle of a deadly shootout. Now, in a lawless land where anything goes, Will's gunslinging skills are put to the test--and if he's not careful, he may never make it back across the border alive....