Ben becomes an SQ informant in order to identify a mole selling info. Nick refuses to sign divorce papers. A quiet day turns tragic.

Tyler turns to alcohol to cope with the recent tragedy. Gendron asks for help from Nick, who is dealing with problems of his own.

Nick worries about his son. As the mole becomes more active, the SQ puts more pressure on Ben. Audrey takes unnecessary risks during an intervention.

A drug dealer's arrest leads to a complaint against Ben and Nick, whose colleagues have started to resent him. Tyler's old demons awaken.

Vince finds himself in trouble after a routine police call. Ben becomes suspicious of Nick, whose anger at Isabelle continues to escalate.

While resuming his romantic pursuits, Nick gets into an argument with his mother. Ben and Amélie assess their relationship.

Ben receives devastating news about his family. Nick upsets Isabelle when he takes drastic measures to save someone in distress.

Ben catches Nick in a lie. A drug raid brings unexpected results. Caught in the middle of a love triangle, Ben sets some boundaries.

The officers are called to a tragic scene that leaves all of them shaken. Nick and Isabelle find it increasingly difficult to control Théo.

A prime suspect slips through Ben's fingers. Théo's troubles are far from over. Tyler makes a decision about his career.