In between interviews and workout demonstrations with Ferrigno and Schwarzenegger, the latter explains the basic concepts behind bodybuilding. Although he emphasizes the importance of physique in bodybuilding, Schwarzenegger also stresses the psychological aspects of competition, crediting meticulously crafted strategies of psychological warfare against his opponents for his numerous victories. The film briefly looks at Schwarzenegger's training partner, Franco Columbu, a favorite to win the under-200 lb division at Mr. Olympia. A former boxer from the tiny village of Ollolai, Sardinia, Columbu returns home to celebrate a traditional dinner with his family, who still adhere to old world values and are skeptical of the overt aggression of boxing and bodybuilding. Nevertheless, Columbu impresses his family with a display of strength by lifting the back end of a car and moving it down a street.