When Nemo, a good-natured yet naive young clownfish with a fin problem gets captured by a Sydney dentist with a fascination for stealing fish from coral reefs, his overprotective father Marlin goes on a life-threatening journey to save his son. Along the way, Malrin meets a simple-minded but helpful regal blue tang. Together, Marlin and Dory travel across the ocean, encountering vegetarian sharks, underwater bombs, deceptive anglerfish, killer jellyfish and (from the looks of it) inebriated turtles. Meanwhile, Nemo is taken to the dentists' office at 42 Wallaby Way, Sydney and put into the dentists' office fish tank. He befriends the "Tank Gang", a group of fish that the dentist has collected, lead by a moorish idol named Gill. It is then revealed that the dentist plans to give Nemo to his niece Darla as a present. After learning that Darla had killed her previous fish by shaking its bag too hard and too fast. The fish then devise a daring plan to escape. Meanwhile, Marlin and Dory obtain the help of a pelican named Nigel who, after saving them from savage seagulls, flies and ransacks the dentists' office. The dentist tries to fight back but is knocked unconcious by a lamp thing. In the ensuing struggle, Nemo's bag is punctured and he is sent down the sink drain by Gill. Believing Nemo to be dead, Marlin decides to admit defeat and go home. However, Dory manages to find Nemo and reunite with Marlin. Dory is then captured by fishermen but is able to escape due to a combined effort alongside all of the fish that the fishermen had tried to catch. Together, Marlin, Dory and Nemo return to the Reef with newfound friends and continue to live their life.