A group of religious zealots known as The Death Risers have an evil plot to destroy the world by bringing to Earth the Norse God they worship: The Goddess of the Undead, known as Hel! In Asgard, however, Thor the Norse God of Thunder has gotten wind of the evil scheme and forms a plan of his own to stop it. Thor bequeaths a portion of his lightning-wielding powers to his Earthbound descendant, a military scientist named Grant Farrel. Now known as Thunderstorm, Grant puts his powers to use in the name of justice! But is it too late to stop Hel and her acolytes from raising the Midgard Dragon and ruling the Earth…?