These days, if it wasn't for bad luck, John Slocum would have no luck at all. He's got no horse and is only one step ahead of vicious bounty hunters--meaning that his only way out of San Diego is to stow away on the trouble-plagued Yuma Bullet express. And when he's unexpectedly hired to guard a railroad magnate's beautiful daughter, he finds himself facing down her outlaw fianc --and marauding Apache war parties.

Surviving this disastrous train trip means Slocum must shoot fast and think faster. But keeping innocents safe and playing his enemies against each other means riding all the way to the bloody end of the line...