Please turn on your mobile phone when landing. Please turn on your mobile phone when landing.

1, the flight is flying at high altitude. A guest insisted on calling, but when the flight attendant Li Xiaoyan stopped him, he suddenly developed brain edema and died. His mobile phone is in Li Xiaoyan's suitcase. The deceased Wang Qi was a researcher in a secret unit, suspected of stealing confidential documents and trading abroad. The National Security Bureau sent an investigator disguised as his brother "Wang Hao" in an attempt to catch the criminals all at once. Wang Hao's arrival attracted the attention of foreign spy organizations waiting to trade with Wang Qi, and sent Wang Hao's lovers and enemies to test Wang Hao's authenticity.

The telephone on the plane is an important clue. For this mobile phone, Li Xiaoyue and Wang Haoxian formed an indissoluble bond. With the core of the investigation task, Wang Hao realized the danger of the work, but he decided to protect the safety of his lover as much as possible. Wang Hao's heart ached when he watched Li being constantly used by the enemy but unable to tell the truth.

He clearly knows that his task is to defend national security. Fortunately, in the face of right and wrong, Li chose the national interest. Three years later, Wang Hao received a new order, and the password was "login and power on". At the airport, Wang Hao saw Li Xiaoyue's leisurely figure.