Telltale has made the first episode of its five-part Back to the Future game a free download.

Sign up for a Telltale account and give it a go. Episode 1 is called "It's about time" and follows Marty McFly as he does a spot of Delorean-powered time travel to rescue Doc Brown from a spot of bother.

Episode 3 of the five part series was released last week. The free download of Episode 1 is no doubt a teaser to get people interested, but you never know, maybe you'll actually like it. Worth a shot? ®