Treacherous Roman senator Lucius Quintilius plans a secret journey into Thrace to recover a legendary treasure. He is accompanied by his daughter Livia posing as a Christian slave girl, his cruel henchman Commodio, and Terenzius, an ex-gladiator and Nero look-alike who fools the local Thracians into believing he is the real Emperor. But Lucius's plans are thwarted by Spartacus and his band of rebels who succeed in capturing the treasure for Thrace. When news arrives from Rome that the real Nero has died, local Roman governor Consul Metellus joins forces with Spartacus to defeat the traitors.

A Chinese immigrant, recently arrived in America, fights to free Mexican slaves from their cruel master.

Roberto Biasetti and a friend are unjustly sentenced to sixteen years in prison for murder. The true perpetrator of the crime is a man named Maremmano, who happens to be in the same cell. Released after a partial pardon, he feels indebted to the two men and to Roberto's girlfriend. He returns to prison and confesses his guilt.

An evil duke kidnaps the good king and tries to make the virtuous queen his bride and the peasants take arms.

Jack Beauregard, an aging gunman of the Old West, only wants to retire in peace and move to Europe, but a young gunfighter known as "Nobody" who idolizes Beauregard wants him to go out in a blaze of glory. So, he arranges for Jack to face the 150-man gang known as The Wild Bunch and earn his place in history.

A 20th century European village is haunted by the ghost of a murderous little girl.

Mann is a gunman informed by a childhood friend that his father was murdered years earlier by his mother and her lover. To make matters worse, Mann's sister, who is in love with his friend, is held under the thumb of his murderous mom. The two gunmen ride off to have a reckoning with her.

A town is being terrorized by a gang of marauders led by Bill Anderson, a clever bandit boss. The town's leadership is deciding to do something against the problem, but it does not believe bringing in the military will be a solution. It is agreed upon that they will request help from the well-known Pinkerton agency. At the same time, Ringo, a gunslinger, is chasing after the bandits. He suspects a deeper-sitting conspiracy than random bandit assaults. He joins forces with the newly arrived under cover Pinkerton agent, to uncover a plot between a local businessman, the Mexican revolution and bandit's heist loot of gold. But the bandits have long planned to move on. Disguised as Mormons, they are moving west to start a new life of farming during the day and robbing stage coaches at night. Ringo and the agent track them down....

In the deserts of the Middle East, circa 1930s, a half-Arab-half-French adventurer named Aldar woos the Princess Yasmin while engaged in selling guns to warring factions.

Following the mysterious decapitation of an insurance investigator, Police Inspector Peretti is put onto the case, but all the clues lead to an unsolved case of kidnapping and murder.