Scholars have long commented upon striking similarities in Caucasian legends of the fettered giant, the Greek myth of Prometheus, and the Nordic myth of Loki. This essay reviews the principal studies and expands the investigation by demonstrating, via typological analysis, that the fettered gods of Greece and Scandinavia are part of a larger myth in which the gods constrain four supernatural adversaries: Prometheus and his three brothers, and Loki and his three monstrous children.