Victorian Ireland. A boy in search of redress. Victorian England. A man in search of redemption. 1879, County Mayo, Ireland. Liam Walshe and his sick, four-year-old brother, Aiden, are separated from their mother and father, their home destroyed. Liam needs to keep his brother alive whilst he searches for their parents, then he'll take his revenge. He needs help. 1876, London, England. Bernie Kelly is the oldest bare-knuckle fighter on the illegal, underground circuit. A tragedy forces him back to Dublin, the city he ran away from thirty years earlier, and he wants the woman he loves to go...