In this episode, Deng Yuanda cooperated with Ye, and finally decided that the content of the "Broken Arm Plan" was to blow up the Yellow River Bridge in Zhengzhou, for which Professor Sun came.

The two men quickly reported the matter to their superiors, who instructed them to protect the bridge, and at the same time, they tried to win experts like Professor Sun.

Fei Siqing set the rules for Professor Sun regardless of his anger. He asked Professor Sun to stop contact with Mr. and Mrs. Deng Yuanda and all outsiders from now on and concentrate on surveying and mapping until the project is completed.

Fei Siqing told Professor Sun that in order to help him realize this rule, his wife will be taken care of by the appeasement office from now on.

Professor Sun loved his wife and soon completed the drawing system. He took the drawings to Fei Siqing and asked him to release Song Yimei. Fei Siqing ensures that all structural stress points of the bridge have been clearly marked. As long as there is enough explosives, the bridge will be completely destroyed.

Fei Siqing released Song, and Professor Sun left with his wife.

Plot:

1at the end of 946, Kuomintang troops surrounded an independent regiment of the People's Liberation Army in southern Henan. In order to delay the enemy's attack and ensure the safe transfer of personnel, our party's intelligence personnel decided to confuse the enemy with false information.

Deng Yuanda and Ye were sent to Zhengzhou to carry out this special task. Deng Yuanda successfully penetrated into the enemy. With Ye's cooperation and help, he fought wits with the spy headed by the intelligence director Fei Siqing and successfully completed one task after another.

Through constant combat experience, Deng Yuanda became more and more mature and eventually grew into an excellent intelligence worker. Between him and Ye, the initial difficulty in communication has gradually turned into mutual understanding, trust, mutual understanding and love.

At the last moment when they finished their task and were ready to leave, Ye Shuting died heroically. After completing the task, Deng Yuanda continued to move toward a new battlefield with the ideal of * * *.