《thrush》 is a period drama directed by Zeng Xiaoxin, starring Peng Xiaoran, Liu Xueyi, and Suga Renzi, with special appearances by Ding Yongdai, Kong Lin, and Xu Baihui, and starring Li Xinze and Huo Zhengyan. It tells the story of the water droplet project in 1958, which was a basic research on submarine theory.% expand.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".