Kida is learning about the outside world and is adapting well. However, she still feels guilty, as there could still be other Atlantean war machines in the world causing problems, like the Leviathan. Their next mystery is in the Southwestern United States, involving coyote spirits opposing them. They later find a hidden city in Arizona that contains Atlantean architecture, which Kida realizes is an abandoned Atlantean colony. Unfortunately, a very sly shop owner, Ashton Carnaby, intends to pillage the place for its valuables, but the spirits then turn him into one of them. A mysterious man named Chakashi, who is a Native American wind spirit, trusts them with the knowledge of their sanctuary and informs Kida that she can choose Atlantis' destiny. Returning home, the adventurers discover that one of Whitmore's old competitors, Erik Hellstrom, who, after the stock market crash sank his company, went insane believing he was Odin, the Norse king of the gods, broke in at night and stole one of Whitmore's possessions, an ancient spear called the Gungnir, an artifact of Atlantean origin. When they track him down in the frigid Nordic Mountains, he presumes Milo to be the God of Mischief, Loki, and Kida to be his long lost daughter, Brünnhilde. Then, "Odin" uses the spear to cast Milo, Mole, Vinny and Audrey out of "Asgard" before kidnapping Kida and dressing her in Norse clothing. He explains that his intentions are to end the world in Ragnarok, the prophesied apocalypse told in Norse mythology. He creates a lava beast and an ice beast to destroy the world, but well-placed explosives used by Vinny distract the monsters long enough for Kida to retrieve the spear and vanquish the beasts. During these escapades, Kida comes into a greater understanding of just how powerful the Atlantean Crystal is, and that she must choose between hiding it and sharing it with the rest of mankind. Having retrieved the spear, Kida realizes her father was wrong to hide the Crystal from mankind. She combines the Spear with the Heart Crystal and lifts Atlantis above water. Fishermen are shocked at seeing the entire city rise before them. With Atlantis above the water for the first time in over 8,000 years, Mr. Whitmore narrates that from then on, the world was a better place. Cast James Taylor as Milo Cree Summer as Kida John Mahoney as Whitmore Jacqueline Obradors as Audrey /