A blasphemous outcast, Matthew Paris boards the “Liverpool Merchant” as ship’s doctor as it embarks on a mercantile voyage in the slave trade. An illness breaks out among the slaves and crew between Guinea and the West Indies, and slaves are ordered to be tossed overboard in order to claim the insurance. Illness gives rise to mutiny, the captain is killed, and, with Paris as one of the leaders, the ship sails for Florida to establish an egalitarian, interracial society. Meanwhile, back in Liverpool, the loss of the ship has financially ruined its owner, Kemp, who hangs himself. Twelve years later, upon hearing rumours of a utopian community of blacks and whites in Florida, Kemp’s son sets out for revenge.