Still a mystery, the storyline has returning actors, some in dual roles.
American Horror Story: Apocalypse is the eighth season of the popular FX series and this year it's a crossover with characters from both Murder House (Season 1) and Coven (Season 3).
Murder House starred Dylan McDermott and Connie Britton as a struggling couple trying to make a new life in a restored mansion which also happens to be haunted.
Coven follows surviving members of the Salem witch trials against recent attacks that threaten to drive them to extinction. Taissa Farmiga and Amma Roberts starred in this series from 2013; both return for "Apocalypse."
Jessica Lange and Lily Rabe will also return, as will Dylan McDermott and Evan Peters.
The Apocalypse teaser also features a cameo from Joan Collins as a passenger on a seemingly doomed airplane flight.
American Horror Story: Apocalypse! The season will premiere on FX on September 12, 2018