NTV focuses the camera on the lives of two dogfish catchers who, although father and son, are the fiercest of rivals. The father, Fujiemon, is considered the undisputed master dogfish catcher of the village, but his son Daisuke is fighting hard to take his place. Out at sea, between November and February each year, the two men pit their wits and skills to bring in the largest catch. This documentary reveals the true love and respect between the father and son, despite their on-going feud and fierce rivalry.