With the world basically flirting with doomsday, you’d be nuts not to consider a fallout bunker … and when it comes to surviving the end times, we went straight to the source — “Fallout” star Aaron Moten.

TMZ caught up with him at LAX Thursday — and without missing a beat, he tells us the first thing going in his bunker is wine. No debate, no hesitation … ’cause if the world’s ending, you’re gonna need a little liquid escape from reality.

You gotta catch the clip — we also get the lowdown on what food he’d stock up on … and since the item needs water, looks like he’s already planning for at least two bunker essentials.