Giulia is still struggling with the bomb to defuse. Balsamo is risking his life. The Serao clan must be stopped at all costs. A bitter ending for Giulia, too bitter and in fact together with Luca she decides to reopen the game. It's not over yet, it can't end until Paolo Libero has obtained justice.
After the death of Remo, brutally murdered by the Serao, Luca promises little Marco to avenge his father's death. But to do this he needs the lawyer Balsamoche who proposes to the police a pact that is hard to accept, especially for Giulia. In the meantime, the ordinary investigations focus on the mysterious disappearance of a screenwriter.
Denise, a femme fatale desired by all. And that all the men she frequented, jealous of her, could have killed. And in the meantime, the frantic race to find Balsamo before he escapes again, and this time it is no longer possible to understand where. Keeping everything under control, for Luca and Giulia, is increasingly difficult, especially if the boss Carmine Serao also enters the scene.
A new pain for Luca Benvenuto. Enzo Tiberi, the man who many years before, thanks to boxing, saved him from taking the bad path of crime, has been killed, stabbed. Luca does everything he can to solve the case. But he must also deal with the testimony of Ettore, Balsamo's Mephistophelian right-hand man, and the definitive release of Giulia Corsi.
The day of reckoning has come for Remo, Luca, Diego and Ettore. The stakes are high and twofold: on one side, the life of Viola Damiani; on the other, the freedom of Giulia Corsi. But in the meantime, there is no time to waste, the Tenth must solve the case of Simonetta Cerci, a young mother murdered in a barbaric way.
Giulia is in prison, but Luca continues to deal with the investigation, perhaps he has found a small crack in the accusatory system. In the meantime, Barbara is kidnapped by the mysterious serial killer. Pietro and Gabriele manage to save her, but a sensational twist completely overturns the direction of the investigation.
Viola's conditions, after the attack, seem stable and Luca can breathe a sigh of relief, but when he goes to visit her, she reveals to him that she has been playing a double game with Remo, right from the start. Meanwhile, Giulia is on the trail of a mysterious lawyer. Could he be the puppeteer behind this whole story?
The man who killed Paolo Libero doesn't have a name yet, but Giulia Corsi has never been so close to him. Just like Luca, who has never been so close to Remo and meets him again in a tragic and violent circumstance. Meanwhile, the case of a dead researcher will shed light on new scams and old gossip in the academic world.
The discovery of a man's body uncovers an intricate and ferocious family story in which it will be difficult for our heroes to figure out who the real culprit of the murder is. In the meantime, the investigations into Remo Damiani's gang continue apace. And in one long night, the fates of the men of the X, their loved ones, and their sworn enemies will be decided.
Who put that bouquet of flowers on Paolo Libero's grave? Giulia is determined to find out. But Luca also has his own ghost to chase, because the clues that lead him to think that Remo is still alive are starting to become too many. Meanwhile, the search for a missing eighteen-year-old tells us once again that the world of teenagers can hide many secrets.
Investigating the murder of a famous TV presenter, our heroes come into contact for the first time with a world of appearances and unbridled ambitions, which push even ordinary people to exploit their feelings to indulge their desire for money and success. Meanwhile, Remo's gang continues to evade capture... and Giulia and Luca come into conflict over this.
Convinced that Luisa Baccarini was murdered, our men investigate the few traces of DNA found at the crime scene. The lead turns out to be good. Thus begins the hunt for Oscar Romero. But Viola also wants to get in touch with Remo, who she has discovered is alive. Meanwhile, X is busy solving the case of an elderly retired teacher found murdered in a park.
A trap for the men of the X, who find themselves in the middle of a sea of bullets. Giulia Corsi forced to deal with the death of Luisa Baccarini, her only possible witness. The case of a missing child and a man, Remo Damiani, who reappears before Viola's eyes, forcing her to make a heartbreaking choice.
Luca meets Viola and informs her of the tragedy that occurred, showing himself to be very close to his dear childhood friend. While the search for the bodies at the site of the explosion continues, Luca must still solve a complex case. Journalist Cosimo Notari has fallen victim to a clear mafia execution. In a video message, Notari himself accuses the builder Francesco Lomartire of his own death, whom he had been investigating for some time for alleged mafia infiltration. But there is no evidence to frame Lomartire. Barbara Rostagno (Lucilla Agosti) discovers that the killer who carried out the murder mounted a particular part on the motorbike, and in this way traces his identity, without telling his colleagues. But the hitman, Evaristo Rossi, surprises her and knocks her out. Our men manage to save her just in time.
Palermo. Deputy Commissioner Giulia Corsi has an appointment with Alfio Spada, a member of the Serao clan who is showing signs of repentance. During the meeting, Spada begins to reveal something hot but two hitmen burst in and open fire. Giulia, wounded, is unable to save her informant. Meanwhile, in Rome, many colleagues have left the X Tuscolano. Understaffed, our men wonder why replacements haven't arrived yet. Luca Benvenuto, in a meeting with Commissioner Fittante, discovers that, due to lack of funds, the X will be closed. But fate plays a cruel trick. A shooting in a bar in Tuscolano leaves three dead and one wounded, Remo Damiani (Marco Giuliani). We discover that Remo and Luca were inseparable as teenagers. Pranks, pranks, and a shared love for Viola (Antonella Bavaro), the woman who is now married to Remo and is the mother of their only son, Marco.