A search is conducted at Linda Portelance's warehouse. Yvan-Gilles contacts Constance to tell her something that becomes a major breakthrough in the investigation.

Piquette identifies the picture of Marc Laveau at the police station, and tells Antoine about the strange bond between Laveau and Kevin Fontaine.

Now that Marc Laveau is no longer in his way, Kevin Fontaine fakes his own kidnapping to get out of this whole mess.

The body of Benoit Charron, a ufology enthusiast, is found in a crop circle on a turkey farm. His wife Kathleen is convinced that aliens abducted her husband.

The Mascouche squad is investigating a shooting that took place at a window tinting business. Albert Scott Ducharme, a reserved radio host, becomes the police’s number one suspect in the murders.

The Mascouche team searches Pedro Mendoza's place, and Antoine finds bloody clothing in the garbage.

Albert and Françoise agree to describe the same version of events to the detectives. Their interrogations go around in circles.

Jonas and Antoine question Dany Lafleur about his garage's employees to get the name of their prime suspect.

The detectives examine the scene of Hermano, the mariachi's murder, and call in the anti-gang squad. Jovette shows Constance and Jonas the surveillance footage from the event.

DNA from a tissue found in a car, used in a hit and run, doesn’t match Laveau's. Upon interrogation, Océanne who was a lure for the sextortionists, reveals who one of her victims was.

In the muddy field of a dairy farm at dawn, a man and a woman lie on the ground, dead. The woman who was preparing a "surprise" in the Laurentians sadly found herself a victim of this tragedy. Constance Forest, Chief Investigator of the Mascouche Regional Bureau believes that there is another victim to be discovered, a Nancy Lebeau-Pratt. Who is responsible for this slaughter?

An explosion in Joël Savard's trailer! Another victim of Chose-Pet. Important witnesses are added to the list.

Constance and her team are now leading three investigations: a triple murder, Sylvain's attempted murder and the trailer explosion. The list of suspects is only getting longer! Constance has good reason to believe that Marlène, Mike Pratt's accountant and mistress, is implicated in her lover's shenanigans.

The police identify the suspects in Sylvain's attempted murder, brothers Mathieu and Dwayne Henri. Frédérik interrogates one of them to try and unmask who ordered the botched assassination.

Frédérik Bérubé has wanted to meet Anne Dupuis since he found out she was the one who parked Rodrigue's car at the casino. Constance panics. With this new information, there are more chances that Sylvain is somehow implicated in Rodrigue Rancourt's murder. She removes herself from the investigation and concentrates on Jonas' new person of interest who holds important information.

The American police confirm that Yvan-Gilles gave accurate information to the Mascouche team: they found Joël Savard's body! As American investigators gather solid evidence against Éric Charbonneau, Frédérik and Constance have to keep an eye on him. Uncle Savard offers to tell Constance and Jonas everything he knows in exchange for money.

Mascouche's squad is stunned: Maurice Lauzon was not murdered with Paulo's weapon. Curiously, The Orsini brothers move to the top of the list of suspects. The noose tightens around Rachelle.

Constance sowed doubt in Mike Pratt's head during his interrogation. Did Marlène order Nancy's murder behind her lover's back? Rodrige Rancourt's disappearance remains a mystery for the squad.

Frédérik interrogates Sylvain, showing him the suspicious video under Constance's troubled watch. The police are convinced that there was a dead body in the truck and Frédérik is certain that the body is Rodrigue Rancourt since he was the one who ordered Sylvain's murder.

The American police lose Yvan-Gilles and Joël Savard's trail. Mike is still a prisoner in Éric Charbonneau's basement. Will he make it out alive? Constance and Jonas go to the office of Pratt's Doors and Windows to question Marlène. She seems very worried and upset by Mike's disappearance, but Constance is wary of biker Éric Charbonneau's sister… Rodrigue Rancourt's unsolved disappearance still hangs over the squad.