The new trailer for M Night Shamalayan’s Glass, starring Bruce Willis, Samuel L Jackson, and James McAvoy just dropped and we are getting a deeper look at the plot of the upcoming secret trilogy ender that started with Unbreakable.

It’s a little hard to get a handle on what we are looking at here. There is a lot of emphasis on the three main characters being stuck in some sort of Asylum, under the watchful eye of Sarah Paulsen, with a subsequent escape and showdown between Willis character and the combo of Glass and The Beast. We are really hoping that the asylum is only the first act of the film and the rest of it takes place in the wild.

From Unbreakable, Bruce Willis returns as David Dunn as does Samuel L. Jackson as Elijah Price, known also by his pseudonym Mr. Glass. Joining from Split are James McAvoy, reprising his role as Kevin Wendell Crumb and the multiple identities who reside within, and Anya Taylor-Joy as Casey Cooke, the only captive to survive an encounter with The Beast.

Following the conclusion of Split, Glass finds Dunn pursuing Crumb’s superhuman figure of The Beast in a series of escalating encounters, while the shadowy presence of Price emerges as an orchestrator who holds secrets critical to both men.

This riveting culmination of his worldwide blockbusters will be produced by Shyamalan and Jason Blum, who also produced the writer/director’s previous two films for Universal. They produce again with Ashwin Rajan and Marc Bienstock, and Steven Schneider, who will executive produce.