Lady Sorcha Macleod is certain that the man her sister Adela loves, the dashing Scottish Knight Templar Sir Hugo Robinson, is the masked rider who kidnaps Adela on her wedding day. When she learns he is not, she sets off to rescue Adela with Hugo in hot pursuit. On the road with the irrepressible Sorcha, Hugo soon discovers a woman of fire and beauty, a woman he longs to touch and taste - but his honour forbids it, because he is bound by his vow to marry Adela. As a cruel mastermind plots to steal the Templars' legendary treasure and keep Adela for himself, Sorcha and Hugo will risk everything, even their own destiny, to save her and to protect the Templars' long-held secret.