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26 Episodes 2003 - 2005
Episode 1
Costeau sets out in search of the largest animal on the planet, the blue whale. They discover one who is pregnant and attach a detector to them to follow her to the place where she will give birth and be the first to film this beautiful event. Will they make it?
Episode 2
Costeau and his team go in search of the giant squid. To do this, they follow a group of whales that feed on these squid and descend into the depths of the sea in their disc. Due to a malfunction, a giant squid drags the disc into the depths where oxygen is scarce. Will they return to surface?
Episode 3
A voyage along the Belize coast includes a visit to a pre-Columbian temple.
Episode 4
Commander Cousteau and his Calypso team go on the Sepik River in Papua New Guinea to film the great saltwater crocodiles. But there the spirit of the crocodile is vengeful and will have to be appeased. (XNB/Black Roses)
Episode 5
Diving among hammerhead sharks in waters surrounding Cocos Island, off the coast of Costa Rica.
Episode 6
A sunken ship containing toxic chemicals must be stabilized before it slides off an underwater ledge and breaks apart.
Episode 7
From Azores to the Greek islands, the kids search for survivors of Atlantis during an archaeological dig on the island of Dia.
Episode 8
The sight of a giant cephalopod fills Cory with terror and panic, and his reaction leads to an accident.
Episode 9
A lagoon populated by gray whales is threatened by the proposed building of a tourist resort.
Episode 10
Famous wrecks are explored by the Cousteau team.
Episode 11
An ancient English coin convinces Iannis that Lisa and Jeronimo have discovered a sunken treasure ship.
Episode 12
Whales defend their territory and the expedition is threatened.
Episode 13
The Calypso is caught in the middle of a Polar storm while on a search for cetaceans.
Episode 14
The team helps a dolphin that prefers the company of humans rejoin the dolphin community.
Episode 15
A black turtle is followed on its ocean journey.
Episode 16
Fishing is observed in various parts of the world.
Episode 17
Dolphins are the subject.
Episode 18
Monk seals are threatened in Slano, Croatia.
Episode 19
Iannis encounters a giant crocodile in New Guinea.
Episode 20
A lesson on how ancient sailors navigated the Strait of Gibraltar.
Episode 21
An underwater house is built on the spot where the meteor that destroyed the dinosaurs hit.
Episode 22
The Cousteau team saves animals and their habitat, which are endangered by El Nino.
Episode 23
A glacier is explored, but a landslide traps the divers.
Episode 24
The migration of eels is observed by everyone except a young man who has a phobia regarding the creatures.
Episode 25
The Cousteau team assists in rescuing a manatee that has strayed into Miami's sewers.
Episode 26
A coelocanth is caught and inspected.