Shortly after the previous film, a new threat hangs over the world, straight from another powerful Pantheon. After years of studying and spying on modern humanity under the alias of "James Ikol", Loki, the Norse God of Evil, decides to reveal his true Nature, in order to bring Ragnarök to destroy his adoptive family in Asgard. Although used to manipulating others, he seems sincere when he sees Echidna and his family to tell them that he recognizes himself in them, because with his children he would form the same kind of family, seeking their help to destroy Odin. Yet, although partly understanding his pain, the "monsters" understand that Loki's revenge is misplaced and they will do what it takes to try to reconcile him with his adopted family, in order to avoid a catastrophe that would destroy several worlds ! It seems impossible, but Echidna and her descendants are used to achieving challenges that even the Gods would miss...