 During an Antarctic blizzard the damaged Calypso is covered by an estimated 30 tons of ice with an onslaught of over 90-mph winds and snow, Cousteau and his divers film a colony of virtually extinct fur seals and flocks of penguins migrating to ice floes for the winter. Cousteau also encounters and rescues Dr. David Lewis, an Australian adventurer lost at sea for more than two months.