Deputy captain of the anti-narcotics brigade Tang Lang and the female special police captainYue Xiaofeng are two public security police who are working together on the front line of life and death.
When a rocket attack on a hydroelectric power station in Sarang is completed, the Chinese side sends the National Security Bureau's "Thunderbolt Team" to escort Chinese experts to support the repair, but unexpectedly there is a hidden agenda and spy game for the attack on the power station.
