By Jonathon Dornbush
November 10, 2015 at 04:23 PM EST

Where Conan O’Brien leads, the apocalypse will follow, as the late-night host celebrated the release of Bethesda’s Fallout 4 with a new Clueless Gamer segment and a … Gilmore Girls crossover?

Yes, O’Brien opened his latest episode of Conan with a cold open in which the host preps for Fallout‘s version of the apocalypse by heading for an underground vault on his studio lot. And the vault just so happens to be hidden in Stars Hollow’s gazebo.

Yes, it appears Gilmore Girls was harboring a dark secret all of those years (though don’t expect the revival to address this revelation), and it establishes O’Brien’s journey into his very own Fallout vault. There, Aaron Bleyart waits for him for another Clueless Gamer segment in which the two test out Fallout 4 and O’Brien is, unsurprisingly given past segments, disappointed that the characters can’t have sex.

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Watch the cold open above and the Clueless Gamer segment below. Fallout 4 is now available for PlayStation 4, Xbox One, and Windows PC, but if you’re new to the franchise, read EW’s impressions of Fallout 4 from a newcomer’s perspective.