Three robbers escape with loot from a heist before one of them kills the others. Their corpses wash up near the aftermath of a maritime calamity, provoking a policeman's interest.
An undercover cop befriends a yakuza underling who through his contacts helps him infiltrate two rival Yakuza gangs. He pits the two rival gangs against each other in hopes that they will cross each other out.
Young coal miner Takeda leaves Kyushu in search of a better job in Tokyo, only to fall into the lucrative yet dangerous life of a yakuza.