Payback: Money and Power

Eun Yong, a successful investment professional retired to Mongolia, decides to fly back to Korea after he senses a threat looming over his loved ones.

CEO Yoon was a ray of light to Eun Yong, who had been living his life in darkness. She and her daughter Joon-gyeong were his second family to him. Eun has doubts about Yoon's death when he realises that something isn't right.

After 10 years, Joon-gyeong and Eun Yong finally re-connect. Eun Yong hears the real story behind CEO Yoon's death from Joon-gyeong. Special investigations prosecutor Gi-seok makes Tae-chun an offer that he can't refuse.

Eun Yong's plan to take down Chairman Myung is put into action. Joon-gyeong and Tae-chun plan on turning the situation around with a strategy of their own.

Eun Yong barely survives a life-threatening crisis. He calls on Joon-gyeong and Tae-chun to devise a new strategy. The situation takes a new turn when Joon-gyeong speaks at a press conference.

Eun Yong turn himself in, to be the bait. However, because of Chairman Myung's scheme, he is suddenly accused of murder. Tae-chun desperately asks Joon-gyeong for help to save Eun Yong.