Startling wildlife photography reveals the sea and its communities at their most fearsome and alluring in this landmark BBC mini-series on the ocean, a world we know less about than the moon.

Part titles taken from menu screens. Originally produced as a television mini-series in 2001. Special features include: behind-the-scenes featurettes; interviews with various production staff; photo gallery; fact files.

[pt. 1.] Ocean world / producer, Alastair Fothergill ; editor, Martin Elsbury ; photography, Doug Allen ... [et. al.] -- Frozen seas / producer, Martha Holmes ; editor, Jo Payne ; photography, Doug Allen -- [pt. 2.] : Open ocean / producer, Andy Byatt ; editor, Tim Coope ; photography, Rick Rosenthal -- The deep / producer, Alistair Fothergill ; editor, Tom Coope ; photography, Mike de Gruy ... [et. al.] -- [pt. 3.] : Seasonal seas -- The coral seas -- [pt.4.] Tidal seas -- Coasts.