November 1745. After victory at the Battle of Gladsmuir, Charles Edward Stuart rules Scotland as prince regent. Across the border, in England, the regiments of King George are massing, intent on dislodging the prince from his throne in Edinburgh. The newly formed army of Scottish Jacobites take the initiative in the war. They invade England. To disguise their lack of numbers and ensure surprise, the prince's army marches through the border hills in three fast-moving columns. Lord Kilmarnock's regiment of horse grenadiers are ordered to carry out the cavalry duties that the gentlemen...