The fourth movie in "The Purge" horror franchise is going back the beginning.

"The Purge: The Island" will be set during the very first Purge, writer/director James DeMonaco told Vulture.

"It takes place on Staten Island which is cool — the first experimental Purge," he said. "Next July 4, it'll be coming."

He added, "Unlike the characters we've met in the 'Purge' universe so far, these folks won't be used to the annual bout of violence and some of them won't even believe it's a threat."

DeMonaco teased more details about the movie, which is intended to be very topical to the current political climate. "The Purge 4" will explore how such a horrific event ever came to pass.

"I was wondering how you get people to stay for the first Purge, and what they do is they start monetizing it. People from Staten Island can easily go to Brooklyn for the evening, so what they do is start promising very decent sums of money for the very poor people in the neighborhood," he said.

"It becomes a monetization of murder and violence, incentivizing killing and keeping people around for them to be victims. So you see the inception of how grotesque the idea of the Purge is, the manipulation upon the society."