Famed for his horse-racing successes and worshipped by Society Beauties, the dashingly handsome Marquis of Broome is unjustly renowned as heartless and cruel. So, when on the nighttime journey from London to his Surrey estate he discovers a young stowaway hidden in his carriage he appears angry — but when the 'boy' is revealed to be a feisty but very beautiful young girl he quickly softens. Cara, as she reveals is her name, is running away. From what or whom she will not say. With highwaymen prowling the roads and revolution in the air, the Marquis cannot let this young innocent go on alone and defenceless. Despite her protests, he takes her under his wing, finding that she is fleeing a forced marriage arranged by her cruel and wicked uncle, the Earl of Matlock. Just as the Marquis saves her from her uncle, Cara saves him from a murderous revolutionary plot — and as they escape their enemies, they begin to realise that they have been caught by love for one another.
