Marty McFly, a 17-year-old high school student, is accidentally sent 30 years into the past in a time-traveling DeLorean invented by his close friend, the maverick scientist Doc Brown.
Affable hillbillies Tucker and Dale are on vacation at their dilapidated mountain cabin when they are mistaken for murderers by a group of preppy college students.
In the future, the Japanese government captures a class of ninth-grade students and forces them to kill one another under the revolutionary "Battle Royale" act.