With the reign of the gods hanging in the balance, legends rise, heroes fall and hidden motives come to light. Odin experiences a shocking revelation.

On the eve of war, Sigrid and her companions share fantastic tales of magic and honor. Passions ignite around camp, and Odin issues a dire warning.

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.