While the Civil War rages on between the Union and the Confederacy, three men – a quiet loner, a ruthless hitman, and a Mexican bandit – comb the American Southwest in search of a strongbox containing $200,000 in stolen gold.
Two bounty hunters are in pursuit of "El Indio," one of the most wanted fugitives in the western territories, and his gang.
At a female prison located deep within the deadly South American jungles, a group of woman are forced to mine for valuable emeralds for the local corrupt government. A group of new prisoners on the way to the jail are ambushed and are convinced to join a group of revolutionaries seeking to overthrow the prison guards and take the treasure of jewels for themselves.
History Professor Brad Fletcher heads west for his health, but falls in with Soloman Bennett's outlaw gang. Fascinated by their way of life, Fletcher finally takes over the gang, leading with a new 'efficient' ruthlessness.
A women's prison camp is located deep in the tropical rain forest. Sadistic guards and a warden from hell make life almost unbearable for the inmates, and any infraction of the rules is dealt with swiftly and savagely. The camp doctor is horrified at what he sees happening, and drinks heavily to push the horror away. Finally the inmates have had had enough, and they enlist the help of the doctor to try and escape.
The film begins with a school teacher bidding farewell to his students, who are leaving for the summer. As he is heading home he notices two of his students are hitch-hiking and picks them up. He invites them over for dinner and lodging, which they accept.. The majority of the film from this point on is set at the mansion, where the two students turn from guests to prisoners under the teacher's command.
Here he comes to swinging seventies' London, seeking a cure to his malady. Unfortunately, he meets Dr. Jekyll who injects him with a serum that turns him into the lascivious killer Mr. Hyde. In his top hat and black cloak, Hyde haunts the fleshpots of Soho, while two gorgeous women fight for possession of his wolfman soul...
Antonio Torres, a serious singer of Spanish popular music, and Bárbara, a vivacious yé-yé singer, face off in a chaotic contest promoted by Rodolfo Sicilia, an overworked publicist.
Driving home in the brand new Volvo his wealthy wife gave him for his birthday, Ricardo comes upon a smoking, overturned auto with a man and boy trapped inside but, afraid he'd get bloodstains in his new car, he ignores their cries for help and drives away just before the wreck explodes. Soon after, blood begins pooling in his backseat and Ricardo comes to know how Lady Macbeth felt when he can't get the damned spots out no matter how many times he cleans the car...
The marriage between Federico and Monica is on the rocks. Federico has a mistress named Eva. There is a conspiracy between Monica's friend Elena and Eva to take over the company Eurozone owned by Federico. The situation becomes complicating when Diego appears, Federico's former associate.
A gang of criminals, composed entirely of young people, bases its unique fun on stealing from rich elders with the help of the charms of one of the members of the band, Pepi (Nadiuska). They are misunderstood young people looking for an assimilation of society.
