《thrush》 is a period spy drama directed by Zeng Xiaoxin, starring Peng Xiaoran, Liu Xueyi, and Suga Renzi, starring Li Xinze, Huo Zhengyan, and special appearances by Ding Yongdai, Kong Lin, and Xu Baihui.

In 1958, the Water Drop Project, a theoretical basic research project on nuclear submarines, was launched.Once the project was launched, it became a thorn in the side of the enemy agents, who formulated a tit-for-tat sabotage plan code-named "Operation Rock".Police officer Pang Hongmei received the important task of protecting the "Water Drop Project". Amidst the numerous obstacles set up by the US and Chiang Kai-shek agents, Ji Danyang, a patriotic scientist who had returned from the United States, was rescued from the enemy agents and escorted Ji Danyang to Lumen City to participate in the "Water Drop Project".The enemy agents concentrated their latent forces and tried their best to destroy the “Water Drop Project”.Pang Hongmei engaged in a life-and-death battle of wisdom and courage with enemy agents in Lumen, defeated the enemy's conspiracy, eradicated the remaining enemy agents, and finally protected the “Water Drop Project” and achieved the expected success.Pang Hongmei and Ji Danyang, who had gone through the test of life and death, also fulfilled their dreams with firm revolutionary beliefs.