With the looming free trade agreement between the US and South Korea, even a mafia gang thinks it should become more globalized and professional. Doo-shik is picked to infiltrate a mega corporation and steal their methods for success.

My Boss, My Hero is a movie about a gangster named Makio who is forced by his father to enroll in high school and graduate. Makio struggles to hide his true identity while trying to fit in with his classmates. As he immerses himself in the school environment, he starts to learn important life lessons and forms unexpected bonds with his classmates. Eventually, Makio's unique approach to problem-solving helps him navigate both the challenges of high school and the complicated world of organized crime.

In order to hide from the police, a gangster boss changes his identity and becomes a teacher at a high school. He must navigate the challenges of teaching while still maintaining his criminal lifestyle.