An electronic ray that can counter any aerial attacks has just been invented by Professor Goodwin, but before he can put in good hands, he is kidnapped by a criminal organization, that starts an international bid for him and his invention among the rogue countries of the world. The CIA sends Agent Sigma 3 to find the Professor before the transaction takes place. His mission takes him from Rome to Tangiers, and to Barcelona.
Peggy Kennebeck
Lanky Fellow has a typical cynical SW like way to earn his living. He observes valuable transports of money or gold, but when they are robbed he doesn't intervene, but follows the robbers and then brings the loot back to collect the insurance. When his "job" brings him in conflict with the notorious outlaw Gus Kenneback, he has personal reasons to protect the money as Kenneback was once responsible for the death of Lanky's brother.
Nancy Mulligan
Wrongfully imprisoned for a crime he didn't commit, Minnesota Clay seeks revenge on the man who withheld evidence at his trial. There is a problem however, he is going blind.
Muriel
A serial killer called "Hyena" is finally captured and eventually hanged. But his body disappears before it can be buried, and soon thereafter dead bodies begin to turn up in a small village.
Isabella di Rionero
La Cieca Di Sorrento (also known as Revenge of the Black Knight is a 1963 cloak and dagger film directed by Nick Nostro and based on the novel of the same name by Francesco Mastriani. Masked knights fight the cruel Tyrant Amedeo, tutor of the beautiful, rich and blind orphan Isabella. The knights are led by a young doctor who in the end will defeat Isabella's evil oppressor, give her her sight and marry her.