A Communist spy serving as an officer of the Japanese puppet regime joins hands with Russian and Korean spies to execute an assassination plot.
In the year 1941, Nazi Germany declares war against the Soviet Union. Given that Manchukuo's loyalties lie with Cheng Tian, the Russians are caught in a situation where they face threats on all sides. Their intelligence agency devises a long-term plan in secret. Communist spy Tang Fei (Liu Yunlong) receives a mission to infiltrate the enemy by pretending to be one of their own. At the Security Bureau, he crosses paths with Cai Meng (Han Chae Young), a woman determined to fight against the Japanese regime. They gain each other's trust as they try to outsmart the enemy within their own territory.
An antique shop is at the core of a mystery as its owner who hails from a family that has long been dabbling in the trade becomes embroiled with old secrets from jianghu.
An unexpected visitor pays a visit to Xu Yuan (Xia Yu) and takes him into a dream where a conspiracy is brewing. He finds that a treasured artefact that can only be heard in legends may have personal connections to him and that a scheme from decades ago has everything to do with his fate. Even at the cost of his life, Xu Yuan uses his skills to pit wits and will against the powers from a long time ago.
