The passenger liner Lost in Asterion was wrecked in the waters of the Pacific Ocean. Killed almost all the passengers that could only be on board the ship, except for one scuba diver. This man was not at a loss before the ship's flooding, he pulled on himself a mask, fins and scuba gear, and at the moment when the ship went under the water, he cleverly swam into the deep grotto. Now he needs to get out on the surface, otherwise he will die on the seabed from lack of air. Swim together the underwater stone labyrinth, looking around so carefully, so as not to fall into the claws of crabs, ocean snails and other marine creatures.