Trapani joins forces with the Lopane family who are seeking revenge for the bombing of their summer house which killed Salvo leaving Rosy pregnant without a husband.
Mickey's body is found floating in the river, but amazingly he turns out to still be alive. Rosy is out to avenge Salvo's death, but when Michele is shot down, Rosy turns out no to be the shooter.
The Lopane family tries to keep the Abate family at bay using no light means, bomb explosions, intimidation and liquidations, nothing is too much. The Abate family is out for revenge, the mafia war has begun.
After Nardo's arrest, Rosy becomes the head of the Abate family. This leads to protests from the other families, which forces Rosy to take extreme measures as revenge for their intolerance.
After the failed rescue of Ivan, Claudia learns her days on the force are numbered. She needs to capture Rosy as soon as possible, but Rosy soon learns Claudia is on her tail and puts out another hit on the squad leader.
The anti-mafia squad is hot on the tails of Trapani and Rosy, who gets wounded and left behind by Trapani. Suspicion is raised on the loyalties of the entire anti-mafia squad.
The murder of Michela Turrisi, who was supposed to testify against Rosy, shocks everyone in the anti-mafia squad, except for Claudia, who has staged the murder to protect her key witness.
After Nardo's arrest, Rosy becomes the head of the Abate family. This leads to protests from the other families, which forces Rosy to take extreme measures as revenge for their intolerance.
Ivan is kidnapped by the Abate family who believe he knows the location of a missing computer. While the team is trying to find out where Ivan is being held, Claudia also wonders where the computer is.