It is 1862 when Union army officer John Kelso halts his small command on a bluff. Moments later, they spy a ghostly shadow in the valley below. After they follow the shadow into a deep cavern, the men see a woman, clad in a white nightgown, kneeling at a bedside. As the frightened form slowly turns to face the squad, the seventeen cavalrymen have no idea they have been inadvertently thrust back in time to the reign of King Henry VIII in Tudor England...