In the aftermath of a hard-fought battle between Indigenous warriors in 1267, when many St. Lawrence Iroquoians were killed on the "Isle of Death", an Iroquois prophet gives the massacre's lone survivor the name Asigny. Centuries later, Asigny's descendant Baptiste Asigny is a graduate student studying Mohawk people history. Baptiste struggles to pay rent and obtain research grants while studying under the Université de Montréal archaeology professor Antoine Morin. One night, a rainstorm opens a sinkhole in the field during a game at McGill University's Percival Molson Memorial Stadium, killing one player. Observing the development, Morin theorizes the sinkhole may lead to evidence of Hochelaga (village), where French explorer Jacques Cartier contacted Indigenous peoples in Quebec. Morin obtains an order from the Ministry of Culture to be allowed to dig and hires Baptiste to lead an archaeological excavation of the field.