When a young gang leader seems to be just a bit too stupid to effectively carry out his daily tasks, his superiors order him to go back to school for his high school diploma. Posing as a 19-year-old, he soon learns that the school is even more corrupt and vicious. Wrath is unleashed.

A mobster must complete college and spend some time as an ethics teacher in order to receive a promotion to a coveted territory.

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.