Back to the Future (1985): High schooler Marty McFly Michael J. Fox, during the height of his TV success) is catapulted back to the '50s where he sees his parents in their teens, and accidentally changes the history of how Mom and Dad met. Filled with the humorous ideology of the '50s, filtered through the knowledge of the '80s (actor Ronald Reagan is president, ha!), the film comes off as a Twilight Zone episode written by Preston Sturges. Filled with memorable effects and two wonderfully off-key, perfectly cast performances: Christopher Lloyd as the crazy scientist who builds the time machine (a DeLorean luxury car) and Crispin Glover as Marty's geeky dad.
Back to the Future Part II (1989): A Californian teenager becomes the innocent victim of a local crack-pot's invention - a time machine made from a DeLorean car. He finds himself in his home town thirty years back where he is in for some embarrassingly funny surprises. 'Back To The Future - Part 2' in which a visit by Marty and the Doc to the year 2015 seems to resolve a few problems with the future McFly family. When they return home, they discover someone has tampered with time and Hill Valley, 1985. They must once again get back to 1955 to save the future... and 'Back To The Future - Part 3' in which stranded in 1955, Marty must now travel to 1855 to rescue Doc Brown. Surviving Indian attacks and unfriendly townsfolk it's up to Marty to grab the love-struck Doc, leave the Wild West and get back to the future.
Back to the Future Part III (1990): The conclusion of the trilogy sends Marty McFly on a rescue mission to the year 1885, where he must save Doc Brown from death at the hands of yet another member of the Tannen clan. However, there are a number of complications preventing a quick return to the future: a lack of gasoline for the time-traveling DeLorean, a band of gunslinging outlaws and a schoolmarm with affections for the smitten Doc.