In 1978, Jane Maxwell is celebrating her engagement to the handsome American geophysicist, Will, but though she should be deliriously happy, she is plagued by doubts. When Will is left in a coma by a tragic accident, Jane's guilt makes her determined to save him ... somehow.
In 1715, the Earl of Nithsdale joins the doomed Jacobite rebellion for Scottish independence. The cause is lost and the Earl is locked in the Tower with other nobles and is sentenced to be beheaded.
On a journey to Ayres Rock - on a quest to find some answers at Will's favourite and most spiritual place in the world - Jane is swept away into 1715 and into the Countess of Nithsdale's body. Convinced that saving Nithsdale in the past will save Will in the present, Jane embarks on a daring and audacious plot to rescue the Earl from the Tower of London. Past and present become entwined in a gripping race against time -- and both will be changed by one woman's determination ...