Jung Tae works hard to make money for his sister's surgery. Jung Tae's friend, Jjang Ddol, hears that they can get big amounts of money by investing in smuggling, by the help of a man named Poong Cha. Later, they discover that they were conned and the money was stolen. Jung Tae goes to get revenge from Poong Cha who is in Do Bi Gang after his money was stolen. (thetvdb.com)