The Blair Witch Project, the 1999 horror classic is set to scare movie buffs once again, as Lionsgate Films revealed a secret sequel to the movie at San Diego Comic-Con 2016. Seventeen years after the original movie garnered rave reviews for its eerie storyline and visuals, director Adam Wingard revealed that his mysterious project – The Woods – was actually an instalment to the Blair Witch movies.

Shot in Vancouver, the found-footage movie picks up after the events of the original storyline, and features James Allen McCune as the brother of Heather Donahue.

In the sequel that is simply titled Blair Witch, James will set out on an adventure of his own to find out the whereabouts of his sister, who had mysteriously disappeared several years ago.

According to the trailer (via Hollywood Life), James of Showtime's Shameless receives a tape containing clues about his long-lost sister. Following which, he leads a bunch of college students to the Black Hills Forest of Maryland in pursuit of Heather.

"If there is any chance that I could find out what happened to her, I need to try," he says in the trailer.

If the thrilling trailer is any indication, James' journey into the woods is not going to be a joyous adventure. The secrecy around the movie further adds to the mysteriousness of the upcoming Blair Witch instalment.

"The Woods was our working title," Wingard was reported as saying. "When we signed on to it, we knew that [the name] was eventually going to be changed. To us, it wasn't even going to be part of the marketing. But I think Lionsgate made a really smart decision, using that," he added during the Comic-Con screening.

Jason Constantine, who is one of the top-gun at Lionsgate Motion Picture Group revealed that 'total secrecy' was employed while filming the Blair Witch movie. "It really has been fascinating, all the CIA-level security that we have put around this project, from the very beginning," he added.

Scripted by Simon Barrett, the horror sequel hits theatres on 16 September.

Blair Witch
Blair Witch movie was kept a secret under the name of The Woods Blair Witch/Lionsgate Films