Kang Gon, a prosecutor who can't stand injustice, is enjoying his last day at his office in Cheonghae. On his walk, he comes across a man with incredible power and an unusual bracelet. The two get into a fight, but in the process, the man is killed. Meanwhile, So Young and her team are conducting a police investigation to find Chairman Nam Chul Soon who has been missing for a week.
3년 만의 서울 복귀를 앞둔 에이스 검사 강곤, 폭행 사건 용의자를 뒤쫓던 중 기이한 힘을 목격하게 되는데..
의문의 팔찌를 낀 남자의 정체는?
一列失速的火車即將衝撞上月台，姜坤顧不得身上的傷著急的大喊，要乘客們趕快疏散，不過並沒有人理會他，反而是有人指著他，說他是殺人犯檢察官。眼看情勢已迫在眉睫，這時竟然還有名女子準備跳樓，姜坤別無選擇，只見他跳下月台，試圖用手腕上的ITEM阻止火車前進…姜坤從夢中驚醒，若說是夢也未免太真實了，但他沒有想太多，起身進行每天早晨例行工作。他必需身兼父職照顧患有失語症的侄女多仁，多仁也是他唯一的親人，兩人相依為命。
