Five years ago, a diving expert and ship captain, Jonas Taylor, met an unknown danger in the depths of the Marian Pit that forced him to abandon his mission and leave behind half the crew. Because of this tragic incident, Jonas is kicked out of the navy in a dishonorable way and his career is destroyed, and the marriage and little honor that remains to them is shattered by his belief that his ship was attacked by a giant creature believed to disappeared a million years ago. But when his wife gets stuck in the depths with a diving crew, he is the first to call. Whether it’s a chance to rehabilitate or a suicide mission, Jonas has to face his fears and risk his life to answer the question of whether this giant really existed.