While Elizabeth gives birth to twins, Nathaniel learns that his father has been arrested in British Canada. Forced to leave Hidden Wolf Mountain to help his father, Nathaniel himself is imprisoned and in danger of being hanged as an American spy. In a desperate bid to save her husband, Elizabeth bundles up her infants and sets out on the dangerous trek to Canada. Once there, she discovers that freeing her husband will take every ounce of her courage and inventiveness - and will even threaten her with the loss of what she loves most: her children.
Torn apart, the Bonners must embark on another perilous voyage, this time to the heart of Scotland, where a destiny that could never have imagined awaits them . . .