Guaraldi has survived Sabatini's ambush, and he continues to interfere in Ardenzi's investigation from afar. Meanwhile, the Squad investigates a murder case that threatens to escalate into a private vendetta by the Chinese mafia.
While Ardenzi contends with the growing suspicion that Sabatini has a mole at the police station, the Mobile Unit investigates loan sharking incidents linked to Mafia Capitale, and Isabella ends up directly confronting her stalker.
