Sergeant Clay Tice a free-wheeling cavalry veteran, clashes with his Sergeant-Major Chambers, a by-the-book disciplinarian. When the Sergeant-Major catches Tyce courting Dulcey at the Wayfarers Inn instead of searching for rustlers with his cavalry patrol, the junior non-com is given a choice of resigning or facing court-martial. Tyce resigns, then rounds up several malcontents from his old troop and stages a kangaroo-court in the Wayfarers Inn with Chambers as the defendant.

An ex-convict kidnaps Francis and forces Marshal Crown to assist him rescue a number of prisoners being shipped to federal prison on a special train.