To take down South Boston's Irish Mafia, the police send in one of their own to infiltrate the underworld, not realizing the syndicate has done likewise. While an undercover cop curries favor with the mob kingpin, a career criminal rises through the police ranks. But both sides soon discover there's a mole among them.
In early-1970s Las Vegas, Sam "Ace" Rothstein gets tapped by his bosses to head the Tangiers Casino. At first, he's a great success in the job, but over the years, problems with his loose-cannon enforcer Nicky Santoro, his ex-hustler wife Ginger, her con-artist ex Lester Diamond and a handful of corrupt politicians put Sam in ever-increasing danger.
The students of Suzuran High compete for the King of School title. An ex-graduate yakuza is sent to kill the son of a criminal group, but he can't make himself do it as he reminds him of his youth.
Someone's bumping off the Mafia bosses of Salerno and it's down to the newly elected leader to figure out who - and rescue his son in the process.
A hit man whose mission is to prevent the printing of a tell-all book written by a former Mafioso, falls in love with the employee who may lose her job if the book doesn't get published.
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.
In Genoa, the Commissioner Sironi has identified the leader of the ferocious racket that controls the port activities. But the law restrains his action.
Gino Felino is an NYPD detective from Brooklyn who knows everyone and everything in his neighborhood. Killing his partner was someone's big mistake... because he's now out for justice.
A Neapolitan camorra boss has retired from business but when his wife gets killed he gets back into action, and goes to the States to get his revenge.
Two mafia bosses, Don Antonio Marchesi and Don Peppino Scalise, battle over building contracts in Palermo.
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.
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...
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!
The seemingly random killings of an assassin puzzle her former lover, a wealthy Greek crime boss whose organization is jeopardized by his love for her, and the detective following her rising body count
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.
Vincenzo is hired by mobster Salvatore and moves to Turin with his sister Annunziata. After witnessing a mafia hit, he is sent to France. On his return he discovers that his sister is no longer working but is instead performing as a stripper in a nightclub...
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.