Marty McFly's life is a dump. His father, George, is constantly bullied by his supervisor Biff Tannen and his mother, Lorraine, is an overweight alcoholic. One day, Marty gets a call from his scientist friend Dr. "Doc" Emmet Brown telling Marty to meet him at Twin Pines Mall at 1:15 AM where Doc unveils a time machine that runs off of plutonium built into a DeLorean and demonstrates it to Marty. Marty accidentally activates the time machine, sending him back to 1955 where he accidentally gets in the way of his teenage parents meeting. Marty must find a way to convince Doc that he is from the future, reunite his parents, and ultimately get back to the future.