A team of forensic experts at the University of York embarks on a scientific investigation to uncover the identity and cause of death of a mysterious, ancient South American mummy. Through advanced techniques like 3D laser scanning, chemical analysis, and experimental archaeology, the researchers piece together the life and final moments of the individual known as Cloud Man. As they challenge long-held assumptions about his origins and the circumstances of his demise, the team navigates the complex intersection of history, science, and the cultural practices of ancient civilizations.