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.
A serial killer called "The Hyena" is finally caught and eventually hanged. However, his body disappears before it can be buried, and soon thereafter dead bodies start turning up in a small village.
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 ...