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A sharp-eyed worker named Siyul catches the eye of Mudeok, a low-ranking Mapo bandit.

Siyul reaches breaking point. Eun finally starts a new job, and Chun becomes an officer.

Mudeok blackmails Siyul while Chun and Eun rage against a corrupt world.

Siyul begins to adapt to his new life. Chun hears an unbelievable story from Eun, and Wang Hae makes a move that causes tensions to rise.

Siyul establishes a new order as changes begin in Mapo, while Chun uncovers a truth while investigating a missing horse case at the police bureau.

Chun is framed, Eun's petition brings trouble, and Siyul confronts a nightmare from his past. Wang Hae's schemes turn the river into a bloodbath.

The Senior Guardian General's plan carries with it great risk. Meanwhile, the Mapo bandits set out on a reckless revenge mission.

Siyul prepares for revenge but as the map nears completion, an unexpected crisis strikes.

As things come to a head, Siyul prepares for a final showdown with the man who took everything from him.