Fraser returns from vacation to a blazing apartment and a new partner, Stanley Ray Kowalski. After trashing half of Canada in pursuit of a felonious litterer, Fraser is contacted by Ray, who says he can't pick the Mountie up when he arrives back in Chicago. When Fraser gets home, he finds his apartment building gone: all that remains is a pile of blackened rubble, the result of a 'performance arsonist.' Worse yet, when he arrives at the precinct, he finds a stranger masquerading as Ray Vecchio and, curiously, no one seems to realize this except Fraser. Fraser decides to go along with this ruse, all the while utilizing a variety of detection techniques (fingerprints, dental imprints, etc.) as he tries to unravel who the mysterious person is who now answers to the name Ray Vecchio. Along the way, Ray's house is torched (Fraser rescues both Frannie and her perpetually unemployed brother-in-law, Tony, but the goldfish befalls a foul fate when Diefenbaker eats him). Fraser finds more evide

Kowalski stakes out a crypt to face his nemesis; Internal Affairs investigates Vecchio.

Fraser and Kowalski try to reward a reluctant hero but blow his protected-witness cover.

The team guards a council candidate courting Kowalski's ex-wife, Stella.

Thatcher, Kowalski, and Welsh all see a murder at a local mall, and the daughter of a wealthy man is implicated in the killing. It takes a lot of fancy footwork on Fraser's part to prove the identity of the real killer.

A pretty bounty hunter with a big gun and three kids charms Fraser into helping her.

A neighborhood could turn into a battlefield after a gang member dies in a boxing match.

Fraser's elderly chess partner claims he is a deep-cover secret agent waiting to be activated.

Kowalski is framed for the murder of a crime boss. Fraser protects him by letting him stay at the consulate which is official Canadian territory. While Ray and Turnbull are stuck at the consulate, Fraser tries to find the real killer.

Fraser must find a flight attendant's killer before her father does.

Ray finds a corpse hidden in the interrogation room wall.

The case of a murdered sailor, $100 million in gold bullion and a ghost ship in the Great Lakes Triangle tests feuding Fraser and Kowalski.