Atlantis. Many daredevils dreamed of finding the legendary island sunken in the ocean. But only the young cartographer Milo Thatch got lucky in 1914, when he got in his hands a mysterious diary, pointing the way to the Lost Empire. And now the most powerful submarine in the world, under the command of Captain Rourke, goes fearlessly in the open ocean. Milo and his companions will find many exciting adventures, surpassing all the adventures of Captain Nemo: a fight with the sea monster, ancient riddles, riot elements, mystical powers and even a meeting with the civilization of Atlantis! And this is only a fraction of what awaits the heroes on their way to the great mysteries of Atlantis.