Earth.. The planet that hosts hundreds of civilizations. According to studies, approximately 335 million years ago, there was a single continent in the world called Pangea. Over the millions of years that passed, the continent broke apart and took its current form through tectonic movements. According to a legend, there is a lost continent called the Mu continent in the depths of the Pacific Ocean. A British investor named Brain brings together a cosmopolitan research group of 9 people in Argentina. This team sets out to dive into the middle of the Pacific, to the slopes of an underwater mountain, to investigate the legend of the lost continent.