In this episode Mark talks about one of his favourite films: the 1989 American science fiction film "Back to the Future, Part II" directed by Robert Zemeckis and written by Bob Gale. The sequel to the original 1985 film "Back to the Future" and the second installment in the "Back to the Future" franchise. The film stars Michael J. Fox, Christopher Lloyd, Lea Thompson, Thomas F. Wilson, Elizabeth Shue, and follows Marty McFly (played by Michael J. Fox) and his friend Dr. Emmett "Doc" Brown (played by Christopher Lloyd) as they travel through time from 1985 to 2015 in an attempt to prevent his future family from being torn apart. However, while in the future, a now aged and begrudged Biff Tannen (played Thomas F. Wilson) discovers that Doc Brown's Delorean is really a time machine and seeks to use it to alter the past, rewrite history, and remake reality for his own benefit - and after they discover Biff's motivations and actions, it is the responsibility of Doc Brown and Marty to travel back in time and restore both the present and the future.