Watch Full Movie Online. Franco Columbo stars as Interpol operative Franco Armando - code name Beretta - who's forced out of retirement to avenge the cold-blooded murder of a cop. The killer's trail leads to Franco's hometown on the beautiful island of Sardinia, where drugs are turning the peaceful village into a hell hole. The sinister druglord has a sadistic welcome for Franco: the kidnapping of his best friend's beautiful daughter.