Twenty years ago when Hardy Jones and Julia Whitty first began filming off the coast of California and Baja California, little was known of the area's marine life.  Due to decades of whaling, over fishing and pollution, scores of remarkable species stood at the  brink of extinction. The richly illustrated action sequences of whales, seals, dolphins, sharks, sea otters and seabirds, are highlighted with voice-over  personal commentaries from Jones and Whitty