Constance and Antoine interrogate Piquette at the spark bar and discover that Laveau is indeed in Mascouche: he becomes an important witness. The police discover that Ludo knew the young cyber attackers. Denis believes the police are watching him. Nina and Antoine meet their new informant, Sylvain.

Piquette identifies the photo of Marc Laveau at the police station and reveals to Antoine the strange complicity between Laveau and Kevin Fontaine. Laveau is now the main suspect in the investigation, but Kevin is still considered an accomplice. Fred suspects that Voyer is protecting Kathleen. He decides to confide in his chief inspector in Montreal. Kathleen refuses the polygraph at Voyer's request.

The DNA collected from the handkerchief found in the hit-and-run car does not match that of Laveau. In questioning, Océanne reveals to Jonas that one of his victims was none other than Kevin Fontaine. Squad members go looking for him. Denis and Poupart are still actively looking for who stole their drugs and their money. Voyer feels his career is threatened. He tells his version of the facts to Fred, while Yvan-Gilles tells Antoine and Nina the same version as that of Sylvain. Kevin discovers that his brother Denis lied to him about their father's will. He has an idea...