Hezekiah y Alec, dos amigos de Jamaica, se ven inmersos en los bajos fondos del East End de Londres. Allí, conocen a Mary Carr, reina de una banda criminal conformada por solo mujeres conocida como las Cuarenta Elefantas, y entran en conflicto con Sugar Goodson, capo criminal y famoso boxeador.
In season 1, as Hezekiah finds fortune and fame through the art of pugilism, he attracts the attention of the infamous Queen of the Forty Elephants, Mary Carr, who sets about exploiting his talents to further her criminal enterprise. Meanwhile the menacing and self-declared emperor of the East End boxing world, Sugar Goodson, determines to destroy Hezekiah whose ambitions to fight in the West End threatens everything he has built. What ensues is a battle of the old world against the new.