Bryony Wentworth, once a wealthy, privileged English landowner, is convicted of murdering her husband. After being transported to a penal colony in New South Wales while pregnant, Bryony gives birth to her child, then loses it to fever. Captain Hayden St. John collects her from the prison so that she can become a wet nurse for his son. Grief stricken over the loss of his wife, Hayden is bitter and untrusting. Bryony, fearful and angry at her fate, finds much to resent in Hayden, but his child offers her a new will to live. Although Hayden and Bryony fight their attraction, their union is so deeply passionate that it seems nothing can threaten their happiness until Bryony's past comes to haunt her.