《浴血黑帮》一次性获得第四季和第五季续订。A year after his intervention has saved family members from execution Tommy declines to attend their Christmas party for which Ada has returned from America. At his factory he is challenged by union activist Jessie Eden over gender inequality in pay but is more concerned by news that Luca Changretta, son of the Mafia boss he killed, is arriving in England with his mob, the Black Hand gang and out for revenge, As a result he calls a family meeting but Changretta's gang has already begun to do damage.