A clown fish named Marlin lives in the Great Barrier Reef and loses his
son, Nemo, after he ventures into the open sea, despite his father's
constant warnings about many of the ocean's dangers. Nemo is abducted by
a boat and netted up and sent to a dentist's office in Sydney. While
Marlin ventures off to try to retrieve Nemo, Marlin meets a fish named
Dory, a blue tang suffering from short-term memory loss. The companions
travel a great distance, encountering various dangerous sea creatures
such as sharks, anglerfish and jellyfish, in order to rescue Nemo from
the dentist's office, which is situated by Sydney Harbour. While the two
are searching the ocean far and wide, Nemo and the other sea animals in
the dentist's fish tank plot a way to return to the sea to live their
lives free again.