The Amazons return from Valhalla, more powerful than ever. They are going to need every ounce of their strength as the Storm Giants face off against the fire demons of Surtr, lord of Muspell, in a battle that could bring about the arrival of Ragnarok and the end of the world. Hessia battles the Queen of the Storm Giants and learns, to her horror, the real reason why her Amazon sisters were kidnapped.