Ennis and Dean in a photo from the backdoor pilot for Supernatural "Bloodlines."

Sam and Dean search the woods in this photo from the backdoor pilot for Supernatural "Bloodlines."

Shapeshifter David Lassiter (Nathaniel Buzolic) is in love with werewolf Violet Duval (Melissa Roxburgh) are shown in a photo from the backdoor pilot for Supernatural "Bloodlines."

Here's a photo of the Scissor Fingers villain in the photo from the backdoor pilot for Supernatural "Bloodlines."

David Lassiter has a run in with the scissor finger villain in this photo from the backdoor pilot for Supernatural "Bloodlines."

Ennis is trying out his new hunter skills in this photo from the backdoor pilot for Supernatural "Bloodlines."

Dean and Sam look mystified in this photo from the backdoor pilot for Supernatural "Bloodlines."

Dean discovers Chicago bars serve things up a bit differently in this photo from the backdoor pilot for Supernatural "Bloodlines."

Julian Duvall (Sean Faris) and Sal Lassiter (Bryce Johnson) from the backdoor pilot for Supernatural "Bloodlines."

Ennis overlooks the river in this photo from the backdoor pilot for Supernatural "Bloodlines."

A villain from from the backdoor pilot for Supernatural "Bloodlines."

An artsy Impala shot of the Winchesters in Chicago from the backdoor pilot for Supernatural "Bloodlines."