Lee Jeong-suk, the notorious gang leader, was finally released from prison after seventeen long years, only to find himself in a precarious position. His former protégé, Yeog Eun Ki, had orchestrated a plot to steal all his power and loyal followers. Determined to reclaim his dominance, Lee Jeong-suk sought out his old allies and devised a plan to overthrow Yeong Eun Ki. He also enlisted the help of his former cellmate, Choi Sung Hoon, whom he considered as a brother. The power struggle between Lee Jeong-suk and Yeong Eun Ki sent shockwaves through the gang, leaving everyone trembling in fear. As tensions escalated, Choi Sung Hoon uncovered the dark truth behind his father's death, vowing to seek vengeance even if it meant returning to prison. The stakes were higher, friendships were tested, and loyalties were up for grabs in this intense battle for control in the underworld.