Three friends: Mary, Patricia and James live in a small port town. They considered their city to be ordinary and ordinary. But more recently, they learned that there is an island nearby, next to which a strange boat sank, which was carrying a valuable cargo. The friends decided to go to the island and look for the sunken boat in the Treasure Ship. Surely she went to the bottom near the shore, which means not too deep. The heroes have collected the necessary diving equipment and are ready for an exciting treasure hunt. What they will find there you can find out if you join an interesting expedition in the Treasure Ship.