Jake faces the consequences of his actions when a loved one's life is at stake. Rose and Des uncover a shocking betrayal from one of their own. Sloan makes a strong choice about her future.

Jake and Mal investigate death threats at the airport targeting construction magnate, Elsa Tessier. Rose and Des discover something missing from the Doyle office safe.

Jake crosses paths with detective Bill Murdoch on a strange case, but Jake's not sure he is telling the truth.

Jake is forced to team up with his fugitive former partner Kevin Crocker, who's determined to clear his name; Leslie must step up when a colleague is attacked; Des wrestles over telling Jake a secret.

Jake must release himself from a debt to a Montreal mob boss by locating a clever hustler. Leslie becomes suspicious of a fellow officer's motives. Jake is rattled by a visit from his ex-wife.

Jake pursues a missing painting and a convicted art thief out for revenge; the Doyles are on edge after a brutal attack on one of their own; Sloan struggles to find her place in the family.

Jake crosses paths with a familiar hot headed cop, Jimmy O'Rourke while chasing a super hacker; Mal and Rose negotiate their way to a windfall; Des becomes apprenticed to a slick new Master.

When an informant of Leslie's is murdered, she investigates the case with Callum and their partnership takes an unexpected turn. Jake gets involved in Callum's business.

Jake is taken hostage and must investigate from inside an unusual, high stakes robbery at a University while Leslie contends with the situation outside. A trapped Mal risks his safety to help Leslie.

Jake takes a relaxed fishing trip with Mal and Des only to uncover a murder mystery in the woods with two unlikely hunters. Des helps a shaken hitchhiker who may know more than she's saying.

A memory-addled Jake must fill in the blanks from the night before when Sloan goes missing and her worried aunt, Patti, seeks his help. Jake and Leslie come to a crossroads in their relationship.

Eccentric novelist Garrison Steele returns and pulls the Doyles into an unusual murder investigation which resembles one of his novels. Tinny moves on from Grayson but must deal with the fallout.

Troublemaker Martin Poole comes back and Jake and Mal have no choice but to contend with a determined hitman when a man's life is on the line. Tinny makes a big decision about her personal life.

Jake and Mal have to keep up with a mysterious girl who gets one over on them; Des feels a deep connection to the case; Jake and Leslie face an unexpected surprise.

Jake meets his match in a wily bail-jumper who he must bring back to the city‒a task made very difficult when an old nemesis interferes and Tinny can't stay out of trouble, even while suspended.

The Doyles and Leslie finally find out where Jake has been all this time‒but he's brought some trouble back with him and Tinny oversteps her professional bounds.