During China's Song Dynasty, a mysterious murder occurs at Chancellor Quin Hui's palace after meeting delegates from the neighboring Jin Dynasty. The members become embroiled not just in a murder mystery, but a larger conspiracy concerning the fate of the empire.

Tells the story of prosecutor Han Ming who is involved in a difficult case where the intentional injury of people is turned into a legitimate defense.

In the puppet state of Manchukuo in the 1930s, four Communist party special agents, after returning to China, embark on a secret mission. Sold out by a traitor, the team find themselves surrounded by threats on all sides.

After a critical intelligence leak, a national security unit launches an intensive investigation. But successive setbacks in their arrest operations reveal a shocking truth: the trail leads back to within the unit itself. Amidst a storm of trust and betrayal, a silent battle begins to unfold...