The show revolves around three main characters: Marco Catalano (played by Alessio Maria Federici), a small-time crook who becomes the leader of the gang; Roberto "Il Guercio" (played by Lorenzo Ciompi), a tough and cunning member of the gang; and Silvio "Il Vice" (played by Ivan Dominick Hirst), a charismatic and ruthless enforcer. As the series progresses, the gang becomes embroiled in a world of crime, violence, and corruption, with far-reaching consequences.