A year ago, M. Night Shyamalan scored a surprise hit with his film Split, about a teenager named Casey (Anya Taylor-Joy) being kidnapped and held hostage by Kevin Wendell Crumb (James McAvoy), a man suffering from dissociative identity disorder. The end of the film had a surprise: a direct tie-in to Shyamalan’s comic-book superhero homage Unbreakable, which led to an announcement that his followup film Glass would further connect the two films. At its Hall H presentation at San Diego Comic-Con today, Universal Pictures released a full trailer for the film.

The trailer introduces Dr. Ellie Staple (played by Sarah Paulson), a psychiatrist who specializes in “those individuals who believe they are superheroes,” addressing Bruce Willis’ Unbreakable character David Dunn, Kevin Crumb’s various personalities, and Samuel L. Jackson’s Mr. Glass. The three characters have come together in a hospital under her skeptical supervision for treatment. Jackson’s titular character seems to be at the center of the film, saying he wants the rest of society to know that people like him exist, and meeting the Beast — the monstrous personality that became Split’s primary antagonist — for his own sinister ends.

While Split only hinted that the film and Unbreakable will share a universe, Glass drives that point home, with Shyamalan noting during the panel that it will bring his thriller and comic book films together for “the first fully grounded superhero movie.” Glass will be released on January 18th, 2019.