Captain Nemo and the Underwater City attempts this but only manages to flood the machine’s control room killing Lomax in the process. During this episode, the Bath brothers sneak into the Forbidden Area where they discover a second submarine, the Nautilus II, and see it as a means of escape. Enlisting Fraser to aid them, Fraser learns how to operate the submarine. During training they ram and kill a vast Manta Ray-like creature accidentally created during the building of the city. Fraser tells Nemo he should leave as he is attempting to cut off the supply of weapons to the American Civil War. Nemo refuses but
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