When a foreign spy organization sabotages China-U.S. peace talks through assassination and tech theft, National Security officer Yang Guang launches a covert investigation. As he closes in on the culprits, a mysterious woman frames him, forcing Yang to fight for both justice and his innocence in a deadly game of espionage.

When a foreign spy organization sabotages China-U.S. peace talks through assassination and tech theft, National Security officer Yang Guang launches a covert investigation. As he closes in on the culprits, a mysterious woman frames him, forcing Yang to fight for both justice and his innocence in a deadly game of espionage.

The rise of the Qin state in the Warring States period during the reign of Duke Xiao of Qin.