The latest "Supernatural" season 9, episode 15 spoilers reveal that the Ghostfacers return! Dean and Sam will head to Washington to find a ghost spotted in a selfie picture. Check out the teaser trailer below!

"Supernatural" season 9, episode 15 is titled "#THINMAN," and airs next Tuesday, on March 4.

The official synopsis for the episode reads: "THE GHOSTFACERS RETURN - A teenage girl (guest star Ali Webb) is killed and the final selfie she took before the attack shows a ghostly figure in the background. Looking for something to keep them busy, Dean (Jensen Ackles) and Sam (Jared Padalecki) head to Washington to find the ghost. While the two interview the girl's mother, Betty (guest star Maria Marlow), they are surprised when she starts talking about cold spots and fritzing. When they ask her about bringing up paranormal signs, Betty replies that the "supernaturalists" who called earlier brought it up. Enter Harry (guest star Ryan Moss) and Ed (guest star A.J. Buckley), the famous supernaturalists."

Check out the teaser trailer below!

"Supernatural" season 9, episode 15 airs on Tuesday, March 4 at 9:00 PM EST on the CW.