These comedic films revolve around a character named Peter, who exhibits foolishness, immaturity, and unprofessionalism. Despite facing different situations across the films, Peter consistently displays problematic behavior, which serves as the central theme. In the first film, Peter is a repeat student known for his vulgar jokes. In the second film, he struggles to secure a medical profession despite his unethical conduct. In the third film, he returns to school but eventually receives a Navy invitation despite his academic failures. The fourth film follows Peter's naive personality as he joins the Navy, while the fifth film highlights his romantic misadventures. Throughout the series, Peter's lack of growth and poor choices create comedic situations, making him an endearing character despite his flaws. These films blend humor and life lessons, appealing to both children and adults.