Battle between international criminal organizations and the secret team of international police formed against these organizations. An action drama incorporating element of children's hero program, Tokusatsu, such as characters with superhuman motor nerves and the appearance of super machines. "Strada 5" is the name of this secret team.
Seeking revenge against the guard who tormented him, a young man returns to the island where he was imprisoned in reform school. But his plans for vengeance are disturbed when he encounters a strange and beautiful young woman