Emilio, Benito Alberto and Gino are four childhood friends who today belong to the same police group "Z Brigade". Your first mission is to address the assault to a bank, but the lack of vitality that characterizes them they help the assailants flee the scene! The sergeant in charge decides to send them back to the Police Academy. The instructor will Moria Casan, who will train them to face and try to capture "Scar", the most feared and elusive offender.

A divorced couple fight over a bankrupt company, while a young woman poses naked for a painter as revenge, an actress rejects a businessman and a model kidnaps her captor.

The plot involves the school director bringing in a female inspector to clean up the school. The students decide to kidnap her and replace her with the sexy stripper "aunt" of one of the girls (who is naturally sleeping with several of the guys). The real director meanwhile falls madly in lust with one of her male captors. Meanwhile a goody-good student and her hypocrite father begin to suspect the ruse . . . So will there be a lot of crazy hijinks? Will everything work out happily in the end? Will the entire female cast (and an unfortunate amount of the male cast) find some excuse to get naked?

This time, the Brigada Z gang, take a little vacation in Mar del Plata but their money is stolen. In order to enjoy their vacation, they become lifeguards and accidentally discover a band of thieves that robs Casinos. Emilio, Gino, Berugo and Alberto don't forget they're cops so they decide to investigate.