Somewhere in the Pacific, a continent larger than South America and home to 64 million people supposedly collapsed into an abyss of fire in a single night. This episode traces the lost continent of Mu from its origin as a 19th-century mistranslation of a Maya codex to its growth into a sprawling pseudo-archaeological empire that intrigued world leaders, inspired H.P. Lovecraft, and still sends people searching the ocean floor.

We follow Augustus Le Plongeon's Atlantic version, James Churchward's relocation of Mu to the Pacific in the 1920s, his unverifiable Naacal tablets, and the colonial mindset behind his claims about Easter Island. Then we hit the wall of plate tectonics and explain why lighter continental rock cannot sink into denser ocean floor, before exploring Mu's afterlife in Turkish nation-building, the Yonaguni Monument, animati ...