At the funeral of his son Marko and associates in TropojÃ«, Albanian mafia head and freelance domestic terrorist Murad Hoxha vows to seek vengeance on his son's killer. Traveling to Paris with his men, he interrogates and tortures former intelligence agent Jean-Claude Pitrel, whose business card was found at the scene of Marko's death, but finds no information. He then bribes a corrupt police official for Pitrel's files and deduces that Pitrel's old friend Bryan Mills was responsible and is in Istanbul.
Meanwhile, Bryan has just finished his three-day security job for a wealthy Arabian sheikh in Istanbul and is surprised by his ex-wife Lenore and daughter Kim. While going out for lunch with Lenore the next day, Bryan spots Murad's men following them. He tells Lenore to run and tries to shake the Albanians, but finally surrenders when they capture Lenore. Realizing that Kim is also a target, Bryan calls her at the hotel and tells her to hide, but then he is captured and knocked out. She narrowly avoids capture when the kidnappers are forced to flee after shooting two security guards.
Regaining consciousness, Bryan finds himself zip tied to a pipe over his head in an empty basement. He uses a concealed miniature cell phone hidden in his sock to contact Kim and instruct her to alert the American Embassy; instead she convinces him to let her help. Opening her father's equipment case, Kim takes a grenade and detonates it on a nearby rooftop; the resulting sound allows Bryan to instruct her on triangulating his location.
The mobsters bring in Lenore, cut her throat slightly, and hang her upside down to bleed out. As soon as they leave, Bryan frees himself and then her. He next has Kim detonate two more grenades and releases some steam through a chimney to guide her to his location. Kim tosses a gun down the chimney, which Bryan uses to kill his guards. He rescues Kim, but watches Lenore get recaptured. Stealing a taxi, Bryan and Kim pursue the kidnappers' van, whereupon an SUV, driven by one of the kidnappers' henchmen, arrives to distract them. A chase and shootout ensue, alerting Turkish police and ending when Bryan manages to lure the SUV into the path of an oncoming train, taking it out.
Leaving Kim at the U.S. Embassy, Bryan uses his memory to find Murad's hideout. He rescues Lenore and pursues the surviving mobsters to a bathhouse, where he kills them. Confronting Murad, Bryan offers to let him walk if he agrees to return home and cease his desire for revenge. Murad agrees and Bryan drops his gun, but the former goes back on his word and tries to kill Bryan, only to find the gun unloaded. Realizing that Murad will never drop his vendetta against him, Bryan impales him onto a sharp towel hook.
Three weeks later, the Mills family is at a diner back in Los Angeles, having milkshakes to celebrate Kim passing her driving test. They are joined, much to Bryan's surprise, by Kim's boyfriend Jamie, to which she jokingly tells her father not to "shoot this one".
How many weeks later is mills back in Los Angeles?
Three