Ex-train robber Jim Jackson is fresh out of the tough Texas Convict Leasing System where brutal guards beat all of the courage out of him. Now good for nothing - except drinking - Jackson is known as 'Junk' by the townsfolk of Parker's Crossing. But Jackson has one thing going for him - he is the fastest gun that the Texas Rangers have ever seen. When a series of violent murders terrify the people of Parker's Crossing, it is to 'Junk' Jackson they turn. But can Jackson find the courage to take on the killers? And who is the mysterious stranger with new information about the slaying that put Jackson into the prison system in the first place?