"I don't dance very well when my partner has a gun in his hand."

On a mission to save his friend Dr. Emmett Brown, Marty McFly must travel back to the Hill Valley of 1885 and bring Doc back before he's shot. After paying a visit to his great-great-grandfather Seamus McFly, Marty finds Doc, just as Doc finds someone else - new Hill Valley schoolteacher Clara Clayton. Can Marty get Doc to come back with him and leave true love behind?