With unique access, expedition leader Paul Rose, environmentalist Philippe Cousteau Jr,
maritime archaeologist Dr Lucy Blue and marine biologist and oceanographer Tooni Mahto
investigate whether the vibrant coral here can help other coral reefs threatened by global
warming.
They dive in one of only two places on Earth you can see a new ocean being born; they explore
the wreck of an Italian ship, to find her top secret, deadly cargo; and they uncover
archaeological evidence of one of early man's first encounters with the sea.
And Philippe Cousteau Jr has an emotional journey to the remains of an ambitious underwater
village established by his grandfather, Jacques Cousteau, in 1963 to discover whether humans
could live beneath the waves.