In a radical departure from the established chronology of the Marvel Cinematic Universe, the destruction of Asgard during a premature Ragnarök forces the Tesseract from its ancestral vault and onto a collision course with Earth centuries before the modern era. Rather than being safely recovered by Norse worshippers in Tønsberg, the artifact settles at the bottom of a lake in the territory of the Haudenosaunee Confederacy in pre-colonial North America...