It is to the point where they are left off, Marty and Doc start in 2015 to fine-tune the future and break the space-time continuum by mistake. Now, their only chance to fix the present, will return all the way back to 1955, before it’s too late.

With this madscientist traveling young teenager returned in 1955 to a convert car DeLorean time. One day he meets his parents, still a teenager, but his presencecast rechyrov and he is to make sure they fall in love, or your inversion has not yet come to hell and does not exist.