The brand new trailer for the upcoming horror sequel It: Chapter Two has debuted online. The film is the second part of the well-received Stephen King adaptation. James McAvoy, Jessica Chastain, Bill Hader, Isaiah Mustafa, Jay Ryan, James Ransone, Bill Skarsgård, Andy Bean, Jaeden Martell, Wyatt Oleff, Sophia Lillis, Finn Wolfhard, Jeremy Ray Taylor, Chosen Jacobs, and Jack Dylan Grazer are all amongst the cast.

A new poster has also been released.

Director Andy Muschietti reunites the Losers Club—young and adult—in a return to where it all began. Warner Brothers will release the film in September.

Here’s the official blurb:

The film is Muschietti’s follow-up to 2017’s critically acclaimed and massive worldwide box office hit “IT,” which grossed over $700 million globally. Both redefining and transcending the genre, “IT” became part of the cultural zeitgeist as well as the highest-grossing horror film of all time. Because every 27 years evil revisits the town of Derry, Maine, “IT CHAPTER TWO” brings the characters—who’ve long since gone their separate ways—back together as adults, nearly three decades after the events of the first film.

James McAvoy (“Split”, “Glass”) stars as Bill, Oscar nominee Jessica Chastain (“Zero Dark Thirty,” “Mama”) as Beverly, Bill Hader (HBO’s “Barry,” “The Skeleton Twins”) as Richie, Isaiah Mustafa (TV’s “Shadowhunters: The Mortal Instruments”) as Mike, Jay Ryan (TV’s “Mary Kills People”) as Ben, James Ransone (HBO’s “The Wire”) as Eddie, and Bill Skarsgård returning in the seminal role of Pennywise. Andy Bean (“Allegiant,” Starz’ “Power”) plays Stanley, and reprising their roles as the original members of the Losers Club are Jaeden Martell as Bill, Wyatt Oleff as Stanley, Sophia Lillis as Beverly, Finn Wolfhard as Richie, Jeremy Ray Taylor as Ben, Chosen Jacobs as Mike, and Jack Dylan Grazer as Eddie.

Muschietti directs from a screenplay by Gary Dauberman (“IT,” “Annabelle: Creation”) based on the novel IT by Stephen King. Barbara Muschietti, Dan Lin and Roy Lee are producing the film. Marty Ewing, Seth Grahame-Smith and David Katzenberg are the executive producers.

The behind-the-scenes creative team includes director of photography Checco Varese (“The 33”), Oscar-winning production designer Paul D. Austerberry (“The Shape of Water”), editor Jason Ballantine (“IT,” “Mad Max: Fury Road”), and Oscar-nominated costume designer Luis Sequeira (“The Shape of Water,” “Mama”).

Related: It review

It: Chapter Two will arrive in cinemas on 6th September. Here’s the new trailer.