In a school where the meeting seems more complete sampling of teachers and professors stupid airhead, there is the class of Peter, repeating in life, which is the "grandfather" to the far more young companions concerning jokes and vulgarity. Even outside the school walls, in the family or in the streets of the village where he lives, Peter is not far behind and his antics continue to freewheel.

Alvaro Gasperoni, alias Peter returned to Rome with their families from Addis Ababa, where he received his bachelor's degree in medicine. Helped by his father through a recommendation from the P2 Lodge, he manages to get in a hospital in Rome as assistant to the primary. Here begins the struggle with other colleagues to buy up the post of deputy prime. As any good doctor is measured by the number of patients who, the whole family and all his friends are hospitalized; He, in this way, comes from the league winner. The fatal destiny wants its affair is discovered by an inspector of the Ministry of Health, and Peter will be dismissed from the hospital. This will not deter the protagonist by the medical profession; who continue to indulge in a private clinic run "family".

Pierino has again flunked the exams. Therefore, his desperate parents send him to boarding school.

Had come of age and unemployed, Peter decides to go back to school to take the elementary school. However, his academic performance continues to be poor so much so that his grandmother to play for the votes of a report card to the football pools coupon. The grandmother with the votes of Peter will win, using the amount paid to renew their tavern, without giving any money to his nephew, who will retaliate by closing all his family in the bathrooms of the new restaurant. Eventually Peter was rejected despite the efforts of his teachers, but Peter does not seem to be over: receives, in fact, a visit to Camazzo, her neighbor and Head of the third class of the Navy, which gives him an envelope containing the fateful "call to Arms".