Officially formed in 1999, Nunavut is the newest and most northerly territory of Canada. This sparsely-populated region is home unique wildlife, ancient culture and, it seems, a mystery. Join Ben, Matt and Noel as they unravel the strange story of a bizarre, unexplained sound emerging from the seafloor -- it's allegedly terrified migratory animals, baffled local hunters, and inspired the Canadian government to launch an official investigation (which led to more questions than answers).