'IT: Chapter 2' Trailer: Adult 'Losers Club' Vows to Kill Pennywise Once and For All
Warner Bros.
The Cast of the OG 'It' -- Where Are They Now?

You'll float, two.

27 years after the Losers Club thought they had put an end to Pennywise the dancing clown, he's back and meaner than ever. Watch the first trailer below.

Picking up nearly three decades after the events of the first movie, "IT: Chapter 2" finds the now grown-up kids of Derry, Maine returning home to "put an end to the evil being once and for all."

While Finn Wolfhard, Sophia Lillis, Jack Dylan Grazer, Jaeden Lieberher, Jeremy Ray Taylor, Chosen Jacobs and Wyatt Oleff are all expected to return, their roles will also be played by an older crop of actors.

Jessica Chaistain steps into Beverly Marsh's shoes, James McAvoy plays Bill Denbrough, Bill Hader is Richie Rozier, Isaiah Mustafa will star as Mike Hanlon, Jay Ryan plays Ben Hanscom, James Ransone is Eddie Kaspbrak and Andy Bean was cast as Stanley Uris.

Bill Skarsgard also returns as their child-eating foe.

The preview kicks off with an extended scene of Chastain's Beverly returning to her childhood home for the first time in ages, only instead of coming face to face with her father, she's greeted by an old woman. It quickly becomes clear that something is off, before Bev realizes she's actually been interacting with Pennywise in disguise.

From there, it's all footage of the old gang reuniting -- including the book's memorable Chinese restaurant scene -- and some frightening encounters with the evil clown. It appears some of the movie will take place at a carnival, as well as feature a return to the sewers beneath the town.

While we'll all have to wait until September 6, 2019 to see the movie, Stephen King already has -- and he says it's "terrific."

View Photos Everett Collection/Getty The Cast of the Original 1990 'IT': Where Are They Now?