“Everyone wants to know how the world ended. This is the story of how it began,” says the narrator in the trailer for “Homestead,” an inspirational survivalist thriller out Dec. 20 from Angel Studios.

As the story starts, newscasters announce “America’s just been attacked!” After a nuclear bomb is detonated in Los Angeles, the nation devolves into unprecedented chaos, according to the logline.

Ex-Green Beret Jeff Eriksson, played by “Longmire” actor Bailey Chase, and his family escape to The Homestead, an eccentric prepper’s fortress nestled in the mountains, the logline continues. As violent threats and apocalyptic conditions creep toward their borders, the residents of The Homestead are left to wonder: How long can a group of people resist both the dangers of human nature and the bloodshed at their doorstep?

Also starring are “Tulsa King” star and “Yellowstone” actor Neal McDonough along with Dawn Olivieri, Jesse Hutch and Olivia Sanabia.

The movie’s opening comes in tandem with a companion TV series “Homestead: Family Survival” that continues the story, debuting the same day on the studio’s Angel.com site. Charles Esten, Jill Wagner and Sam Page also star in the series.

“Homestead,” based on the “Black Autumn” series of books by Jeff Kirkham and Jason Ross, is launching in theaters with Angel’s Pay It Forward program, which encourages people to purchase a ticket for someone else to be able to see the film for free.

Angel Studios is the distributor of inspirational and/or faith-based films such as last year’s hit “Sound of Freedom.” Angel’s most recent release is WWII drama “Bonhoeffer: Pastor. Spy. Assassin.”

Watch the trailer below: