In the autumn of 573 AD, the civil war that divides the Celtic nations in the post Romano- Britiain ends at the battle of Arthuet. The Celtic amies disband and the warriors return to their homes, but the losses to the combined Celtic forces are so great that the immigrants from Germania - the Angles who settled along the North Sea, boldly send raiding parties into the Celtic homelands.

In 1863, Amsterdam Vallon returns to the Five Points of America to seek vengeance against the psychotic gangland kingpin, Bill the Butcher, who murdered his father years earlier. With an eager pickpocket by his side and a whole new army, Vallon fights his way to seek vengeance on the Butcher and restore peace in the area.

The series is set in Naples , in the imagination " Sant'Andrea police " in Piscinola district. "La Squadra" gives a realistic overview of the world of crime through the cases investigated by the Sant'Andrea police station in Naples, which are intertwined with the private affairs of the agents in a skilful mix of detective story and soap.