Supernatural Season 9 Spoilers What will happen during the series premiere of "Bloodines"? Photo: Chuck Hodes/The CW

OK, guys. It’s officially time to start counting down the hours until the series premiere of the “Supernatural” spinoff, “Bloodlines,” airs. The sophomore drama, based on Eric Kripke’s beloved fantasy series, will debut within the 20th episode of the show’s ninth season, serving as a backdoor pilot. That means “Supernatural” fans will be forced to take a bite out of the spinoff—and we have to admit, we think they’re going to like the taste.

The official synopsis for the pilot episode of “Bloodlines” explains how the story of the Winchester brothers will tie into the new show. While visiting Chicago, Sam and Dean will discover that underground the Windy City lurks five different tribes of supernatural creatures. During this revelation, they’ll bump into a young hunter, Ennis Roth, who is determined to seek revenge against one of the tribes for killing his fiancé in a cross fire.

Supernatural Season 9 Spoilers The "Supernatural" spinoff will air on April 26 as a backdoor pilot. Photo: Chuck Hodes/The CW

“So you’re saying there are five monster families who run Chicago?” Dean asked Ennis in disbelief.

“I know what I saw,” the handsome character replied. “This thing wasn’t human.”

Supernatural season 9 spoilers Are you excited for the series premiere of "Bloodlines"? Photo: Katie Yu/The CW

The trailer then cuts to a scene of a beautiful young woman transforming into a growling werewolf.

“Oh hell no,” Ennis says later on. Looks like the spinoff’s protagonist just realized how much he’s decided to put on his plate. But never fear! Sam and Dean are willing to take Ennis under their monster-catching wings to show him the ropes of the business.

“What we do is dangerous,” Sam warned him.

“You don’t know the city—I do,” he replied.

Supernatural season 9 spoilers "Bloodlines" will introduce new characters and new threats in the "Supernatural" spinoff. Photo: Carole Segal/The CW

The “Supernatural” spinoff series will star Lucien Laviscount as Ennis Roth, Nathaniel Buzolic as Daniel Lassiter, Danielle Savre as Margo Lassiter, Melissa Roxburgh as Violet Duval, Sean Faris as Julian Duval, Stephen Martines as Freddie Costa, Bryce Johnson as Saul Lassiter and Erinn Westbrook as Tamara.

Are you excited for “Bloodlines” to air? Let us know what you hope to see in the supernatural drama when the series premiere airs on the CW on April 26 at 9:00 p.m. EDT.