“The Winchesters” finale gave “Supernatural” fans a pretty big twist.

Many fans were initially uncertain about the idea of a prequel series.

Many fans were initially uncertain about the idea of a prequel series.

However, the finale revealed that it wasn’t a true prequel at all.

Instead, the story takes place in an alternate timeline.

Jensen Ackles, who plays Dean Winchester, says it “furthers the lore.”

“It would've been a fool's errand to try and box ourselves in with what had been created on Supernatural,” he explained.

He said they realized they had to make the story a “completely separate, alternate thing.”

“The Winchesters” has yet to be renewed for a second season.