Bon Cop, Bad Cop 2

David Bouchard steals a street-racing car in Montreal, eludes pursuers, and delivers it to a chop shop. Shortly after, the Royal Canadian Mounted Police (RCMP) raid the garage, led by David's old colleague, Martin Ward. While fighting, David tells Martin that he is working for the Sûreté du Québec, and they improvise a scenario for David to escape while preserving his cover. They decide to combine their investigations but when David calls them partners, Martin notes that he will be in charge. David crashes the get-away vehicle, is shot, and takes drugs to make his escape story believable to mob boss Sylvio DiPietro and his henchman Mike Dubois.
DiPietro announces that he needs 25 cars in 5 days. While staying at a strip club run by Mike, David observes the customers behind this mysterious order. Martin follows the three men to the Consulate General of the United States, Montreal, but when he returns the next day, he is obstructed by bureaucrats and gains no information.
Mike remains suspicious of David's escape from the raid and shows DiPietro evidence implicating David of collusion with Martin. Martin learns of this through surveillance and orders David to abort the operation, but David refuses and returns to DiPietro's headquarters, where he is tasked with delivering a stolen car across the border to Maine. When David arrives at a small town main street, surveillance of DiPietro and his customers leads Martin to believe they are preparing to remotely detonate a car bomb. Martin orders David to run, which he does after driving the car away from innocent bystanders. The car explodes and David surrenders to inept local law enforcement.
The FBI led by Agent Blaine arrive after several hours, followed shortly by Martin who is promptly arrested. Handcuffed together in the interrogation room, Martin and David discuss their lives: David's daughter is entering the provincial police academy while Martin is estranged from his son Jonathan – whom he hasn't been able to tell about his Lou Gehrig's disease diagnosis. They vow to solve the case so that Martin can retire as a hero. The next morning, Blaine releases them, dismissing their warnings and treating the explosion as an isolated incident.
Returning to Montreal, David and Martin find their operation has been shut down with only their security hacker MC remaining; they decide to continue without authorization. DiPietro's gang have scattered; they find Mike at the strip club and capture him. While initially resistant to interrogation, Mike feels himself in jeopardy when Martin reveals that he's dying and has nothing to lose. The three go to the location where the last five stolen cars are departing. David takes Mike hostage, but DiPietro shoots him dead and David shoots back wounding DiPietro before cuffing him to Mike's body. From a high vantage point, Martin shoots three of the five drivers with a rifle, but one of those he hadn't shoot is Jonathan who drives away. The remaining car bombs are taken and thrown into a Sewer by David, which causes a big explosion and a scaffolding to fall down and crush DiPietro to death. Martin is distraught, initially believing Jonathan is dead, but MC determines that his car is still moving and they have a chance if they can stop the control system.
David and Martin return to the US consulate where Blaine and his three conspirators discuss how their false flag operation will renew the American war on terror and make them heroes. Blaine is alerted to David and Martin's presence and takes them to his office, where he tells them that they were right and that the FBI has seized most of the car bombs and the computers. However, MC calls Martin warning that the signal is still active. Questioned, Blaine realizes he has been exposed and aims his pistol at them, but David and Martin overpower him and escape in a consulate car. MC directs them to the mobile transmitter which is in an armoured truck. They stop it but the occupant of the locked rear compartment shoots himself in defiance. Martin desperately tries to drive the truck into the river but David interferes, resulting in the truck crashing. They then use a nearby mobile crane to carry the truck to the river, where they drop it, flooding the rear compartment and disabling the transmitter.
Jonathan has delivered his stolen car to the Islamic Cultural Center of New York. He hears another driver being arrested while discussing social plans by phone. Terrified, he phones Martin who gives him instructions to leave the scene and seek protection at the Canadian consulate.
Several months later, David and Martin attend a formal ceremony where they are awarded the Medal of Honor by the US president. Among those in the audience are Jonathan, apparently reconciled with his father, and Bouchard's daughter who is wearing a police cadet uniform.