When an Army payroll is stolen and two soldiers are murdered, the commanding officer of Fort Dodge threatens to put Dodge City under martial law unless Matt can capture the perpetrators within 48 hours.

Suave and enigmatic gambler Marcus France falls in love with Long Branch hostess Boni Damon. France is curiously unwilling to marry Boni, though he is willing to risk death to protect her from the unwanted advances of vicious Tiller Evans.