Sam (Jensen Ackles) and Dean (Jared Padalecki) are going down the rabbit hole. According to reports, the Winchester brothers will be taking a break from bringing down The Darkness (aka God's sister) during episode 7 of “Supernatural” Season 11 to hunt another mystical creature: Peter Cottontail.

But it’s not just any rabbit that the boys are determined to locate. The synopsis for the upcoming episode, titled “Plush,” reveals that the two will spend episode 7 tracking down a bunny mask-wearing murderer that’s been wreaking havoc throughout a town.

“What’s up, Doc?” Dean quips in a promo video after coming face-to-mask with the creepy prisoner sporting a blood splattered, paper maché bunny head. “It would be easy all around if you just talk to us.”

But jailbird refuses to answer and instead puts his hands around Dean’s neck, proving there’s something seriously off with this silent rabbit.

Padalecki unveiled to Entertainment Weekly that it’s the masks that are forcing the townspeople to go mad and partake in gruesome murders.

“The boys have to come in and find out what’s powering these masks and if it’s something that’s possessed or if it’s a ghost,” the actor revealed, noting that the episode will provide fans with “a lot of laughs” -- namely because Sheriff Donna (Briana Buckmaster) will reprise her beloved role in the forthcoming installment.

“Sheriff Donna calls the boys because it seems like there is a crazed psycho-killer that’s putting on Halloween masks,” the actor told Entertainment Weekly.

“Supernatural” airs Wednesdays at 9 p.m. EST on the CW.