20,000 Leagues Under the Sea: Submarine Voyage the cavern entrance simulating a surface storm, the Captain would order the submarine down into the depths as a precaution, and the guests enter the show building section of the attraction. Within minutes, the devastation such natural phenomenon can create was made clear with the ominous Graveyard Of Lost Ships, with shipwrecks from various centuries littering the sea bed, guarded by the silent, gliding figures of sharks. Leaving the destruction behind, the Nautilus would reach the North Pole, circumnavigating the Polar Ice Cap from below the surface, and narrowly avoiding large icebergs stabbing through the water. Venturing deeper, the Nautilus
The Return of Captain Nemo writers working, neither one of them knew what the other ones were doing, and they had a three-week deadline! And it went off the air after those first four weeks." Bloch's segment (co-written with Larry Alexander) was titled "Atlantis Dead Ahead" although in the theatrical release there are no titles for individual segments of the story. "The Return of Captain Nemo" was a co-production between Irwin Allen Productions and Warner Bros. Television. It was originally shown in the United States as a three part miniseries (60-minutes each episode) on CBS from March 8–22, 1978 and portions of the three-episode series