Following the disastrous defeat of the clans at Culloden, Scottish Chief's son Diarmad Ramsay makes his dying father a promise. Diarmad will play the part of Bonny Prince Charlie in an effort to help the true Prince escape the Highlands. With only the fiery Mara MacIvor for guide and with danger on his heels, he must risk all for a Cause in which he no longer believes.

Mara MacIvor considers Ramsay a poor substitute for her beloved Prince. Ramsay may be one of the bonniest men she's ever met and a braw sight with a sword in his hand, but his disillusionment makes a wide gulf between them. Pursued through the Highlands by Sassenachs and ruthless Highland renegades bent on claiming the price on Prince Charlie's head, their physical attraction soon becomes a conflagration. But will they ever be bound by more than Diarmad's vow of honor?