Chicago is about to get a visit from the Winchester brothers, but the cities Supernatural infestation will be more than Sam and Dean have time for during "Bloodlines."

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Instead, the veteran monster slayers will leave another young hunter to sort out the five supernatural families that seem to be taking a page from The Godfather as they head up the Windy City's seedy underbelly.

A backdoor pilot for The CW's first attempt at a Supernatural spin-off, the episode will feature Lucien Laviscount as the green hunter Ennis Roth and include Nathaniel Buzolic, Danielle Savre, Sean Faris, Stephen Martines, Bryce Johnson and Melissa Roxburgh as a motley crew of shapeshifters, werewolves and other humans.

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Penned by Supernatural veteran Andrew Dabb ("Mother's Little Helper," "Blade Runners"), the new series won't feature the road warrior aspect of it's mother ship, but it will include the same focus on family that viewers have grown accustomed to with Sam (Jared Padalecki) and Dean (Jensen Ackles).

"Family has always been the core of Supernatural. It's what has allowed the show to keep going for years and years and family being not the family you're born into but the family you make along the way...Bobby was part of the family, Castiel's part of the family and Crowley is like the weird uncle in the family," Dabb explained to TV Fanatic. "And then with the mob thing, you've got the five families; you've got the werewolf family and the shape shifter family, kind of our two big ones, and then looking at the fun of it is all the family dynamics. And also, the dynamics between the families, there are grudges and bad blood and very Hatfield & McCoy type stuff and things like that so it's offering up a lot of possibilities.

Scroll through the photos above to get a glimpse at the Supernatural's brave new world, and click the video below to see what is in store for Roth and the Winchesters during "Bloodlines."

Supernatural airs Tuesdays at 9 p.m. ET on CBS.

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Supernatural, Supernatural: Bloodlines, The cw, Television