Marino (Carlo Verdone) and Glauco (Enrico Montesano) enlist with the Carabinieri in order to change their lives and find stability and maturity through the profession. During training, they also find a third partner in Adalberto (Massimo Boldi), sickly heir to an affluent family, also pursuing a law enforcement career in an effort to grow more independent. They share various adventures during different missions, typically handled with much clumsiness if still good will.