Many years of dumping nuclear wastes into the ocean has created a monster species that is now hunting the ocean floors, endangering the whale population and a threat to the entire ecosystem.
One brave man has taken the grueling task upon his shoulders and launched his vessel into the deep oceans, equipped with his harpoons and an intention to bring the things back to normal.
The supplies are limited and take care not to hurt the already depleting whale population. Test how far you can go with your quest.