Gwang-jang plot
As the most battle-hardened fighter in the crime world, Ki Joon claims victory in a fight that ends the long power struggle between Seoul’s gangs. But when his brother Ki Seok rises in rank within the enemy group, Ki Joon decides to cut his own heel and leave the gang to avoid fighting him. Just when all seems peaceful 15 years later, Ki Seok is mysteriously mugged and murdered in cold blood, just moments before his retirement. Filled with cold rage, Ki Joon begins a one-man hunt to track down everyone involved in his brother’s death.