This is a typical costume drama and adventure story with plenty of fencing, and swash and buckle but not much ingenuity. Based on a story by Anthony Marshall, a swordsman by the name of Thomas Stanwood (Stewart Granger) finds himself fending off a multitude of attackers before he is captured and realizes he was defending himself against the very duke, Don Carlos (Riccardo Garrone), that he is supposed to be helping. The Duke overlooks the mistake and puts Thomas to guard his intended spouse, Orietta Arconti (Sylvia Koscina). She is a cold, arrogant woman who immediately antagonizes Thomas -- until he begins to realize a few things. Orietta's father was killed by the Duke when he took over their city, so how could she really be on the side of Don Carlos? As certain as night follows day, Thomas and Orietta are going to make an unbeatable pair when it comes to righting the wrongs of the past.