Marty McFly and Doc Brown return in a completely new Back to the Future adventure.
Six months after the events of the third film, the DeLorean Time Machine mysteriously returns to Hill Valley - driverless! Marty must go back in time and get aid from a resistant teenage Emmett Brown, or else the space time continuum will forever be unraveled!
Episode 4: Double Visions
It's time for the Hill Valley Expo! Back in 1986, Marty and First Citizen Brown must join forces to create an epic invention so that he can prevent the young Emmett Brown from making the worst mistake of his life.