Fact1: Russian official plans to incriminate former billionaire and government whistleblower Yuri Komarov in imminent rigged trial unless Komarov hands In believed to contain evidence incriminating Chagarin Moscow, Fact2: NYPD Detective John McClane has not been in touch with son, Fact3: bomb explosion orchestrated by Chagarin 's Alik occurs in courthouse and Jack breaks free with Komarov, Fact4: men chase them through streets of Moscow, Fact5: Jack and daughter are given safe passage out of Russia
Output: In Moscow, Viktor Chagarin, a highranking, but corrupt, Russian official plans to incriminate former billionaire and government whistleblower Yuri Komarov in an imminent rigged trial unless Komarov hands over a secret file believed to contain evidence incriminating Chagarin. Separately, Jack McClane, who has been arrested after an assassination attempt, negotiates for a shorter sentence by offering to testify against Komarov. Meanwhile, Jacks father, NYPD Detective John McClane, who has not been in touch with his son for several years, has learned his son is in trouble and, taken to the airport by his daughter Lucy McClane, flies to Russia to help. As John arrives and approaches the courthouse where Komarov is on trial, a bomb explosion, orchestrated by Chagarins henchman Alik, occurs in the courthouse and Jack breaks free with Komarov. Seeing his son, John confronts him, but their dispute is cut short as Alik and his men chase them in a US Cougar MRAP through the streets of Moscow. John, Jack, and Komarov manage to escape. Hiding in a safe house, John finds out that his son is a CIA officer and has been on an undercover operation for the past three years. Jacks partner, Collins, demands the files location from Komarov so that the CIA can bring Chagarin down. Komarov eventually agrees on condition that he and his daughter are given safe passage out of Russia. Collins is eventually shot and killed while the McClanes and Komarov come under heavy gunfire from Chagarins men, but they escape. They make their way to a hotel in the city to fetch the key to the vault containing the file. There they meet up with Komarovs daughter, Irina, as earlier planned. John grows suspicious of her shifty behavior, and is proven correct when Alik and his men burst in and tie John and Jack up, while Komarov is taken as a hostage, and Irina confesses to informing on them for the millions of dollars to be gained. Jack breaks free of his ties and kills the nearest guards using a Russian gunknife, allowing the two to kill most of the men. Alik and Irina, with Komarov still their hostage, return in a Mil Mi24 helicopter and try to kill them, but the two escape a second time. That night, the two steal a car full of firearms and drive to Pripyat, Ukraine, where the vault with the file is located. However, Komarov, Irina, and Alik have preceded them. In a twist, the file is revealed never to have existed: the drawer with the file supposedly inside is in fact a secret passage to a Chernobyl vault containing €1 billion worth of weaponsgrade uranium. Once inside the vault, Komarov kills Alik and calls Chagarin to gloat and to listen as Chagarin is killed by a henchman of Komarovs. At this point, John and Jack enter the vault, discover Komarovs true plot, and capture him. Irina, with another henchman, comes to her fathers aid. As they attempt to escape, Jack follows Komarov, while John goes after Irina, who is escaping on a Mil Mi26 helicopter. Irina tries to protect her father by firing the helicopters guns at Jack. John is able to bring the helicopter out of balance by driving a truck out of the hangar section, still shackled by a chain, via the open rear ramp; he is later thrown off into the building. Komarov remarks that Jack will get to watch his father die, prompting Jack to hurl him off the rooftop into the path of the spinning helicopter rotors, killing him. As Jack and John reunite inside the building, Irina tries to avenge her father by ramming the helicopter, now out of ammunition, into the building in a suicide attack. Father and son survive by leaping off the building into a large pool of water, as the helicopter crashes and explodes, killing Irina. In the end, the McClanes return home and reunite with Lucy on the tarmac.