Bruno Testori is the king of the San Michele penitentiary, a kingdom that begins to collapse following two unexpected deaths, leaving the fate of the prison in the balance.
As Bruno tries to infiltrate charismatic imam Amir's Muslim community, the Slavic and Nigerian inmates wage war over control of the prison's drugs trade.
As Laura receives the data from Bruno's phone, the body of a jihad leader is found, and his death appears to have coincided with Lackovic's attempted breakout.