Growing up in the tumultuous 70s, four knuckleheaded kids became best friends despite their vastly different family backgrounds. However, time puts each of them on a different life path. When Sang-taek and Joong-ho return to visit Dong-su (Jang Dong-gun) and Joon-suk (Yoo Oh-sung) from college, they find out that one of them in jail and the other hooked on meth. Life takes more ironic turns as Dong-su and Joon-suk become rival crime lords.
