Back to the Future (franchise)

The Back to the Future franchise is an American science fictionadventure film series written and directed by Robert Zemeckis, produced by Bob Gale and Neil Canton for Steven Spielbergs Amblin Entertainment, and distributed by Universal Pictures. The franchise follows the adventures of a high school student, Marty McFly Michael J. Fox, and an eccentric scientist, Dr. Emmett L. Brown Christopher Lloyd, as they use a DeLorean time machine to time travel to different periods in the history of Hill Valley, California.

Seventeenyearold Marty McFly is accidentally sent back in time from 1985 to 1955 in a time machine built from a DeLorean by eccentric scientist Emmett Doc Brown, when Marty is attacked by Libyans from whom Doc stole the plutonium that gives the flux capacitor the 1.21 gigawatts it needs to timetravel. Soon after his arrival in 1955, Martys mother Lorraine falls in love with him, rather than with his father George McFly, threatening to cause a paradox that would result in Martys nonexistence. Without plutonium to power the time machine, Marty must find the 1955 Doc Brown to help him reunite his parents and return to 1985.The efforts of Biff Tannen, Georges bully and supervisor, further complicate Martys situation until Marty successfully causes his parents to fall in love and simultaneously convinces George to finally stand up to Biff. Returning to the future via a lightning strike that powers the machine, Marty discovers a vastly improved situation for the McFly family, as a much more confident George has become an accomplished sciencefiction novelist, and an apparentlysoftened Biff is now an auto detailer, rather than Georges supervisor. Despite 1955 Docs insistence on not knowing details of the future, a note Marty leaves in his pocket saves him from being killed by the terrorists. But in the films final moments, Doc Brown appears in a modified version of the DeLorean and tells Marty and his girlfriend Jennifer Parker that they must travel to the future to fix a problem caused by Marty and Jennifers kids. ........

Source: Wikipedia