Return to 20,000 Leagues Under the Sea. Steve Barlow and Steve SkidmorePirates, sea monsters and atomic weapons, Luke Challenger is back and heading deeper into danger in a race against time to save the world. Luke Challenger and his trusted cousin Nick have learnt that Captain Nemo's ginormous submarine, the Nautilus, has been found wrecked in a deep trench at the bottom of the Indian Ocean. In a deadly race against time, Luke must reach it before the sinister Sons of Destiny salvage the ship's unique atomic engines,