The Original: Shane Carruth’s shoestring thriller follows a pair of young scientists who accidentally discover time travel (as you do) whilst doing a bit of experimentation at home. At first they’re in seventh heaven, cheating the stock market and pocketing the cash, before coming over all moral and attempting to set things straight again. However, as any good time-traveller knows, setting things back to normal is easier said than done…

With Added Doc Brown: Irked that the boys have achieved by accident what he has spent years working on (without even bothering with any plutonium!), the Doc arrives to instruct the boys on how to reset time, only to send them years into the past and hog the glory for himself.

Risk To The Space/Time Continuum: The boys attempt to escape from the past by reinventing their time machine. With two now in existence, the continuum is soon thrown seriously out of whack…