Two estranged brothers come together and discover old family secrets after inheriting their grandfather's property. As their friends start to go missing, they fear they are being stalked by a creature lurking in the shadows.

记述日本和歌山县东牟娄郡太地町当地的渔民于每年太地海豚驱猎捕杀海豚的经过。片中的带领者是海洋哺乳类动物专家里克·奥巴瑞。《海豚湾》获得了2010年第82届奥斯卡金像奖最佳纪录片。