Lee Hwan, once a rising professional pitcher, is kicked out of the game he loves when he is caught in a match-rigging scheme. Without a place to call home, he has hit rock bottom, until he reluctantly joins a large mob that has its hand in private loans, online gambling, and real estate businesses. He is noticed right away by boss Sang-ha and quickly rises up the ranks. Sang-ha instinctively realizes Lee Hwan’s boundless potential and begins to groom him, despite objections from his men. Only the strongest and fittest survives in this unjust world. Backed by Sang-ha’s confidence in him, Lee Hwan slowly expands his responsibilities and unleashes his explosive ambition…