In Shanghai in 1937, the young playboy Shen Muqing witnessed the tragic death of his parents, but was forced by his second uncle from the army to undergo plastic surgery in order to live in the place of his "treasonous" ace brother Shen Mubai. When he carried out his first mission under his new identity, he actually saw his living brother in the scope dealing with the Japanese side. The truth is peeled off layer by layer: the death of the parents hides the treasonous conspiracy of the second uncle, the eldest brother is actually a multiple undercover agent, and he is both a bait and a pawn. In the secret war between the military command, the Japanese side, and the underground party, Shen Muqing faced the faces of others, struggling between brother confrontation and uncle-nephew rebellion. He wanted to find out the truth about the family's destruction, but also defended himself in the confusion of identity. A two-sided game with life as a bet began.
