Greenpeace crew launch a two-seater submarine, on loan from the Waitt Insititute, to explore the seafloor in the Chukchi Sea near a proposed Shell drill site north of Point Hope, Alaska. One activist holds a banner reading "Save the Arctic. Stop Shell." The Greenpeace ship Esperanza is on an Arctic expedition to study unexplored ocean habitats threatened by offshore oil drilling, as well as industrial fishing fleets.