Akira The Movie

The story begins in 1988 in Tokyo, just as the city is destroyed by what seems to be a nuclear explosion. Presumably due to confusion after the incident, the explosion leads to the start of World War III.
Thirty-one years later, in the year 2019, the futuristic metropolis of Neo-Tokyo stands on an artificial island in Tokyo Bay. A gang of teenage bikers, led by smug 16-year-old delinquent Shotaro Kaneda, find themselves involved in a street fight with a rival gang called the Clowns. Tetsuo Shima, Kaneda's best friend, having pursued two Clown members in the abandoned Tokyo, finds a child with wizened features (Takashi) blocking his path. As Tetsuo tries to avoid him, his bike inexplicably explodes. When the gang reaches the scene, several military helicopters also arrive. Led by Colonel Shikishima, armed soldiers take Takashi and the injured Tetsuo away while Kaneda and his friends are arrested.