HBO Max Debuts Official Trailer for Max Original "Heaven's Gate: The Cult of Cults," Premiering Dec. 3

All four episodes of the Max Original "Heaven's Gate: The Cult of Cults" will launch on Thursday, December 3 on HBO Max. The docuseries is a thorough examination of the infamous UFO cult through the eyes of its former members and loved ones. What started in 1975 with the disappearance of 20 people from a small town in Oregon, ended in 1997 with the largest suicide on US soil and changed the face of modern New Age religion forever. This four-part docuseries uses never-before-seen footage and first-person accounts to explore the infamous UFO cult that shocked the nation with their out-of-this-world beliefs.

The first episode of "Heaven's Gate: The Cult of Cults" will be available to stream for free on HBOMax.com/watch-free starting Friday, December 4 at 8 a.m. PT / 11 a.m. ET.

"Heaven's Gate: The Cult of Cults" is a Max Original produced by CNN Original Studios and Campfire. Directed and executive produced by Clay Tweel ("Gleason"), the docuseries is also executive produced by Campfire CEO Ross Dinerstein ("The Innocent Man") and Shannon Riggs, Amy Entelis and Lyle Gamm for CNN Original Studios, with Chris Bannon, Eric Spiegelman, Peter Clowney and Erik Diehn executive producing for the digital media company Stitcher ("Heaven's Gate" podcast, "Sold in America" podcast).