Watch Ghastly, Unnerving Trailer for Fox's 'Exorcist' Reboot

1974 horror classic inspires modern-day retelling starring Geena Davis

Fox has unveiled the ghastly, unnerving first trailer for their rebooted 'The Exorcist' TV series.

Lethal Weapon isn't the only classic film that Fox is rebooting as a TV series this fall: At Comic-Con, the network unveiled their latest trailer for The Exorcist, based on the 1973 groundbreaking horror film.

Like its source material, the film pits a priest against a demon that possesses a teenage girl. While the series is inspired by author William Peter Blatty's original novel, the TV show features all-new characters, including Alfonso Herrera as the naïve young priest tasked with exorcising the demons, Ben Daniels as a veteran exorcist and Geena Davis at the mother of the possessed girl.

"Demons aren't real. They are metaphors," Herrera's Father Tomas tells Davis' character early in the trailer. However, by preview's end, he's at war with the evil spirits. Tomas later recruits Daniels' Father Marcus, a modern day Templar Knight raised by the Vatican for the sole purpose of fighting the demons.

Fox has yet to announce The Exorcist's premiere date, but the show is due to air this fall.