When darkness rises on Thra, three Gelfling heroes must launch a quest to save their world.

In a new teaser trailer for The Dark Crystal: Age of Resistance, Deet is called upon to fight the darkening when it threatens her home.

RELATED: Netflix's The Dark Crystal: Age of Resistance Unveils Photos & Launch Date

The Dark Crystal: Age of Resistance returns to the world of Thra with an all-new adventure. When three Gelfling discover the horrifying secret behind the Skeksis’ power, "they set out on an epic journey to ignite the fires of rebellion and save their world."

RELATED: Mark Hamill, Simon Pegg & More Join Dark Crystal Prequel's Star-Studded Cast

The teaser was accompanied by a poster, which finds Deet, Brea and Rian overlooking the task ahead of them.

The series will be directed by Louis Leterrier, whose credits include Now You See Me and The Incredible Hulk. He will also serve as executive producer, alongside Lisa Henson and Halle Stanford. The writing will be led by co-executive producers Jeffrey Addiss and Will Matthews (Life in a Year) and Javier Grillo-Marxuach (Lost, The 100).

The Dark Crystal: Age of Resistance features the voices of Taron Egerton, Anya Taylor-Joy, Nathalie Emmanuel, Caitriona Balfe, Helena Bonham Carter, Harris Dickinson, Natalie Dormer, Eddie Izzard, Theo James, Toby Jones, Shazad Latif, Gugu Mbatha-Raw, Mark Strong, Alicia Vikander, Harvey Fierstein, Mark Hamill, Ralph Ineson, Jason Isaacs, Keegan-Michael Key, Ólafur Darri Ólafsson, Simon Pegg, Andy Samberg and Donna Kimball. The series arrives on Netflix August 30.