The enigmatic Captain Nemo has rescued from death at sea Professor Aronnax, his servant Conseil, and the harpooner Ned Land from certain death at sea. Now, aboard the Nautilus, an astonishing submarine vessel of his own invention, they embark on a journey of discovery to explore the depths of the ocean.

Move the Nautilus, surfacing and diving to avoid obstacles and score points for various elements, such as hunted cetaceans, sighted islands, sunken ships, found treasures, seaweed forests, or even visit the lost continent of Atlantis.