In the underworld, Loki sets a plan in motion. Sigrid and Leif recruit a band of warriors and launch a quest for weapons made of god-killing iron.

Cast: Sylvia Hoeks, Stuart Martin, Rahul Kohli, Jamie Chung, Lauren Cohan, Paterson Joseph, Kristofer Hivju, Jamie Clayton, Peter Stormare, John Noble, Birgitte Hjort Sørensen, Ray Porter, Morla Gorrondona, Roger Craig Smith