The film is a sequel to Shyamalan's previous films Unbreakable (2000) and Split (2016), cumulatively forming the Eastrail 177 Trilogy. Bruce Willis, Samuel L. Jackson, Spencer Treat Clark, and Charlayne Woodard reprise their Unbreakable roles, while James McAvoy and Anya Taylor-Joy return as their Split characters, with Sarah Paulson, Adam David Thompson, and Luke Kirby joining the cast. In the film, David Dunn gets locked in a mental hospital alongside his once-rival Mr. Glass, as well as the multi-personality "The Horde," and must escape from a psychiatrist who is out to prove the trio do not actually possess super-human abilities.
Glass | The Nerdpocalypse - Nerd News and Opinion podcast - Listen or read transcript on Metacast