1640. After a long retirement in the south of France, former pirate Peter Easton has come home to London. Weary and bedridden, he finds himself plagued by heightened sensitivities. He is acutely aware of the suffering of all living things and longs to make amends for a lifetime of destruction. As he is nursed back to health by his devoted young servant, Gabrielle, and a mysterious apothecary, Fleet, Easton finds a focus for his returning energy. He becomes determined to search for the son and heir he left behind in Newfoundland. Against medical advice, he begins to organize one final voyage.