WARNING: The following contains spoilers for Teen Titans #40, by Adam Glass, Robbie Thompson, Eduardo Pansica, Julio Ferreira, Marcelo Maiolo and Rob Leigh, on sale March 18 from DC.

Following the events of their eponymous book's previous arc, the Teen Titans started looking for a way to release Djinn from her ring, which she was trapped in by an angry Billy Wu/Roundhouse. Their first plan brought them to Qurac, and it went very poorly. Djinn's brother Elias turned the magical Titan against her friends, and they only barely escaped with their lives. However, Damian Wayne/Robin still had a plan: Die.

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DC has released its preview for Teen Titans #40, which opens with Damian explaining the team will have to enter a state of near death. Jakeem Thunder -- Djinn's other brother -- will stay behind and protect their bodies to ensure they're able to return from the afterlife safely. Damian is specifically aiming to take the team to Hell, which "is a backdoor to Purgatory," where Djinn is trapped. It's at this point in the conversation Roundhouse drops a reference to Supernatural, one of The CW's biggest shows, saying, "This is some straight-up Sam and Dean stuff." The team then take a poison that causes them to temporarily die and go to Hell.

Created by Eric Kripke, Supernatural started airing in 2005 on WB before the network became The CW. The long running show, which will conclude with the ongoing Season 15, follows the supernatural adventures of Sam and Dean Winchester and has at various points involved them going to Hell. The CW, like DC Comics, is owned by Warner Bros., meaning Teen Titans and Supernatural share a parent company. WildStorm, an imprint of DC, also published a comic series based on the show, Supernatural: Caledonia, between 2011 and 2012.

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Roundhouse's reference to the show is pretty explicit, leaving little ambiguity Supernatural exist in the DC Universe. Of course, just what form that version of Supernatural is in isn't totally clear. Demons and other supernatural creatures are fairly normal in the DC Universe, so the show very well might not have the same appeal as it does in the real world. Still, Roundhouse's penchant for pop culture references makes one of Warner Bros.' biggest and most popular properties DC Universe canon.

Teen Titans #40 releases March 18 from DC.

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