横浜暗黒街 マシンガンの竜

Stefano, son of the Mafia Don Angelino Ferrante, is killed by Gaspare Ardizzone (John Saxon) for refusing to sell some valuable land. The old don sends for Ferrante Santino Billeci from America, in the hope that he'll be able to help in getting revenge. But Gaspar, meanwhile, is becoming the most powerful and ruthless boss of the area...

A group of gangsters escape from prison and attempt to destroy a rival organisation holed up in a convent in Mexico.

Northon is a retired gangster wants to avenge the death of his sister, who was married to Frank Cline. Cline disappeared while transporting a large shipment of the Organization's gold, leaving three dead bodies behind him. Northon follows the trail to the sunken ship and tries to beat rival gangsters to the lost gold.

Rosario Inzulìa, a young man involved with the Mafia, was sentenced to labor camp, forced to pay also for crimes he didn't commit. After eight long years of imprisonment he's finally released. Rosario goes back to Sicily, where he learns that his wife died in an accident. He tries to rebuild his life, but when he finds out that his wife was murdered, he decides that it's time to take action: alone against the Mafia!

A revolution in Iran halts a heroin shipment, but an alliance of crime families is set on getting it to the US. They decide to run the drug through an unsuspecting network of good-natured, local smugglers in Naples, while an international anti-narcotics agent rushes to shut their operation down. Betrayals and divided loyalties lead to a final, bloody confrontation in America.

The magistrate, Scauri, inquires into the mysterious poisoning death of Gaspare Pisciotta, the imprisoned assassin of Salvatore Giuliano. He very soon finds himself struggling against a conspiracy of silence, which Scauri must therefore overcome in order to indict two powerful mafia bosses. His only hope comes for a brief moment from the testimony of the young prosecutor Lojacono. But The Organization is the most strong: the young prosecutor withdraws his deposition and the magistrate disappears in mysterious circumstances.

Mario Gastaldi, a lawyer with no clients and no money, agrees to be a negotiator in a deal on stolen paintings, between the boss Peseti and the engineer Farnese, who plots kidnappings unsuspectedly. After he cashed from Farnese three hundred millions of lire to deliver to Peseti, Mario lets money be robbed by four pickpockets, which he is naturally in cahoots with and which he will share out it with. Money cannot be used since it comes from a kidnapping and it was marked. The lawyer will be able to make the boss get arrested.

Two mafia bosses, Don Antonio Marchesi and Don Peppino Scalise, battle over building contracts in Palermo.

In Genoa, the Commissioner Sironi has identified the leader of the ferocious racket that controls the port activities. But the law restrains his action.

Beleaguered police detective Nishi takes desperate measures to try and set things right in a world gone wrong. With his wife suffering from leukemia and his business partner paralyzed from a brutal gangster attack, Nishi borrows from a yakuza loan shark and then robs a bank to clear his debt.

The last in the series. Sugawara runs into two mahjong cheaters (Ichiro Araki and Mako Midori + sidekick Takuzo Kawatani) whom he takes for friends in need as his naivety prevents him from seeing their true nature.