After a tragic accident maims her laboratory assistant, Dr. Sara Pollard's career as a primate behaviorist lies in ruins. With nothing left to lose, Pollard, descendant of a Nantucket captain whose ship was sunk by a rogue whale, accepts an offer to join anti-whaling activists on a round-the-world racing yacht as the resident scientist, to sail from Argentina to the stormy Antarctic Sea. There they'll shadow, harass, and expose the Japanese fleet, which continues to kill and process endangered whales in internationally-declared sanctuaries. But everyone aboard Black Anemone has a secret, or something to live down. But no one aboard is prepared for what Nature herself has in store, when they're targeted by a massive creature with a murderous agenda of its own.