In the year 1985, teenager Marty McFly goes to visit his
eccentric friend Doc Brown. Brown has managed to build a time machine in a
DeLorean with plutonium that he has stolen from terrorists. When the terrorists
come to kill Brown, McFly runs away and is transported to 1955. He meets
younger versions of his parents and Brown. He enlists Brown’s help in returning
to his own time all while trying not to change the past. The first and last
movies are the best ones in this franchise. I never much cared for the second
one.