CaptainMurakamitakesoverasskipperoftheAzumaMaru,replacingthewell-likedformercaptain.Murakamiforcesthecrewtoworkharderthantheyeverhave,creatingenmityandexhaustion.Justwhentheshiphastakenahugecatchoftunainitsnets,Murakamilearnsthathisshipistheonlyoneinpositiontorescuethecrewofanothership,sinkinginastorm.Hemustchoosebetweensavingthecatchorsavinglives.Eitherchoicemaymeanhisruin.