Four stooges from different social backgrounds (a recommended Neapolitan pope's son, a skilled Roman pickpocket, a Sicilian pseudo mafia and a rough shepherd burino) make friends in a barracks during the military service and begin to combine all the colors , subjected to the orders of some bizarre and braggart superiors. Despite the incapacity and ineptitude shown by the four in an often tragicomic way, the moment of redemption arrives. The four are in fact engaged in the "great maneuvers", where they will have to confront the English, US, German and French armies, and where, against all odds, they will prevail.