A spin-out sequel to the popular Japanese thriller. This time it focuses on the character "L."
A spin-off of the popular Death Note films, 'L: Change The World' focuses on the legendary detective L as he uses his final 23 days to solve crimes all over the world. When a young girl and boy come to him for aid, L is soon faced with what may be his most difficult case yet: stopping a group of corrupted scientists from spreading a lethal virus throughout the earth.—Morticon
The last foe is a new "Death", created by man. To solve the Kira Case, L leaves Los Angeles convincing Kira is in Japan. At the same time, his intuition tells him that he may never be able to return to Los Angeles again. Known as Kira, Light Yagami, using the Death Note, attempts to become God of a criminal-free new world. By L's ultimate choice, the Kira Case closes, but, at the same time, L loses Watari, who was his most trusted partner. After losing Watari, L takes on the task of solving the cases left in the later's file. As all the cases are solved, a "gift" addressed to Watari arrives. The gift is a little boy. From the SD card the boy has in his possession, L learns that the child is the only survivor of a Thai village that was exterminated. L also discovers that a huge conspiracy, utilizing a man-made virus, was on the move behind the Thai village tragedy. Meanwhile, L has another visitor. The girl's name is Maki, and she tells L that she has brought something her father, who died a horrible death, told her to deliver to Watari. As L realizes the item the girl brought is, indeed, the virus in question, pursuers are closing in. Protecting the two children, L physically makes moves to solve the horrendous case. However, he only has six days to solve the case.
In the final 23 days of L's life, he takes on one final case involving a bioterrorist group that aims to wipe out much of humanity with a virus. The virus has an infection rate that is one hundred times the infection rate of the Ebola virus. During this case, he takes a young boy with a gift for calculations, the sole survivor of the virus's use in a village in Thailand, and an elementary school student named Maki Nikaido under his wing.
Dr. Nikaido later receives a sample of the deadly virus which destroyed that village in Thailand. His assistant, Dr. Kimiko Kujo, reveals herself to be the leader of the organization that created the virus. Dr. Nikaido, who has created an antidote to that virus, refuses to give it to her. He destroys the antidote and injects himself with the virus. She later kills him, and she is convinced that his daughter Maki has the antidote formula.
Under the pursuit of Dr. Kimiko Kujo and her assistants, Maki runs and escapes. She eventually finds L's headquarters. However, the group manages to track Maki down, forcing L, accompanied by Maki and the boy, to run away in a high-tech crepe truck; Maki had also injected herself with the virus beforehand and tried to use her infection to murder Kujo out of hatred for her father's homicidal death, but there were no signs of infection throughout the journey of the trio's escape. The trio also received the help of FBI agent Hideaki Suruga during the escape.
They escape to Nikaido's research partner Dr Matsudo's lab because they need his help to recreate the antidote. Initially reluctant, Matsudo agreed after sensing L's determination and after running some tests, he found that the reason Maki did not show signs of infection was because of her low blood sugar, and the virus was unable to infect her rapidly enough since it depends on sugar to do so. When they did not seem to get to any closer to achieving a positive outcome for a cure, the boy had solved a mathematical puzzle left behind by Maki's father, which turned out to be a crucial hint to making the antidote. Using this hint, and upon hearing from L that the boy was the sole survivor of the Thai village which the virus destroyed in the start of the film (he was possibly immune), Matsudo decided to try using some of the boy's blood for a test to create the antidote. During the tests to create the antidote, Maki was kidnapped by Kujo and her accomplices when she sneaked off and attempted to murder Kujo to avenge her father.
With the help of the boy, L manages to acquire the antidote just as the terrorists are about to take Maki, who started to show signs of infection, to the US to spread the virus. L stops the plane and gives all the infected passengers, including the surviving terrorists, the antidote. Maki then tries to kill Kujo out of revenge, but L stops her, telling her that killing Kujo would not bring back her father. Kujo and the terrorists are then arrested. Maki wakes up in a hospital, fully cured, with her stuffed bear next to her and a recording from L telling her to have a good day tomorrow. The film concludes with L leaving the young boy in the care of Wammy's House, the orphanage where he grew up. Before leaving, L christens the until-then-unnamed boy "Near."
After the end credits, L is seen back in his room eating a chocolate bar and leaving momentarily. The film ends with the words "L Lawliet, Rest in Peace" on a black screen.
