Animated series. While diving into a rare 'blue hole' - a sinkhole in the middle of the sea - strange things begin to happen to the Nektons. Show more
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Animated series. While diving into a rare 'blue hole' - a sinkhole in the middle of the sea - strange things begin to happen to the Nektons. Show more
CBBC is the BBC's multiplatform offering for 6-12 year olds bringing the very best drama, entertainment and factual programmes to its young viewers.
