It’s time to reacquaint yourself with the mysterious Neri and the teen inhabitants of ORCA, the underwater marine research station, as they battle to protect the Earth’s oceans in Season Four of this much-loved adventure-filled television series. In Season Four, Neri discovers an underwater pyramid, built long ago by voyagers from her own planet. But when her home planet falls to rebels Neri engages in a deadly struggle with a rival Princess for control of the mystical pyramid on Earth, which can save humanity or destroy it.

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