Finding Nemo installs a new high-tech filter before the Tank Gang can escape. Marlin and Dory exit the East Australian Current and are engulfed by a blue whale. Dory communicates with the whale, which carries them to Sydney Harbour and expels them through his blowhole. They meet Nigel, who helps the pair escape from a flock of relentless seagulls and takes them to the dentist's office. Darla has just arrived, and the dentist is handing Nemo to her. Nemo plays dead to save himself as Nigel arrives, terrifying Darla and throwing the office into chaos. After Nigel is violently thrown out by
Captain Nemo: The Fantastic History of a Dark Genius joins him, but Verne, fearing what might happen, refuses. Nemo volunteers to fight in the Crimean War. While there, he is taken captive by one of his supposed allies, an Ottoman commander named Robur. Robur is engaged in a power-struggle with a rival official, Barbicane. Nemo is forced to design a submarine for use in the Ottoman navy; after many difficulties, it is finally launched, and christened the "Nautilus". Nemo and his fellow slaves use it to kill Robur, but not before their families — including the Turkish wife Nemo had taken and their son — have been killed. Grief-stricken,