

Using a magical artifact called the Tao Engine they pressurized and heated the limestone in place to create a massive marbleized network of rooms and passages. The third key character among those trapped is expedition sponsor Karl, played by Ioan Griffith.The Marble Sanctum was created thousands of years ago by a powerful sect of necromantic arch-mages. At the very beginning of the film, Reese plays a boy who has only entertainment on his mind, but throughout the film he will grow spiritually and morally and by the end will turn into a real man who can pass this difficult test. His character must always be strong and be able to make only the right decisions, no matter how difficult and inhuman they may seem, because the lives of everyone who find themselves in a cave in this difficult situation depends on him, including Reese Wakefield, in the role of his son. Hundreds of tons of water, lack of oxygen and endless caves can drive anyone crazy, but not the organizer of the entire expedition, played by Richard Roxburgh. With such a combination of circumstances, the team of brave divers-speleologists has no choice but to swim deeper into the underwater caves, where their last salvation should be - an underground outlet to the sea. Many kilometers underground have already been passed and nothing portends trouble, as a tropical storm suddenly begins two days earlier, as a result of which the exit from the cave is blocked, and water begins to arrive at the underground location of the group of researchers. The beginning of the film is rather calm, a usual expedition, during which a group of cavers are trying to find an outlet to the sea from the largest network of caves in the world.
