I think you mean "Back to the future." What this means is that some people went back in time to the past, and now they are trying to get back to the future where they belong. For example, they went back 30 years into the past in the movie (to 1955) and now Marty is trying to get back to future 30 years so he can go home. He wants to return to the year 1985. For more, see: http://en.wikipedia.org/wiki/Back_to_the_Future#Plot

I don't know but this sound creepy it must be a title of a mysterious book... anyway i think its means that some people are belong to future so they go back in time and come back to present time Hope it helped:D