The spy war between highly intelligent and technical nerds is more exciting than having a golden finger.
In 1939, there was a turbulent undercurrent on the beach in Shanghai. AI mechanical engineer Gao Zhijie passed through the Republic of China when he broke through the technical bottleneck and became the technical elite of Wang Puppet No. 76 Electrical Affairs Office.
In this dangerous cave, he appears to be a "playboy" obsessed with technology, but secretly controls the bionic insect army from the future - the mechanical bee "Stinger" to carry out divine punishment in a silent place, and the mechanical dragonfly "Eye of the Sky" to eavesdrop on secrets under the eyes of the enemy. He interacts among the connections of classmates studying in Japan. He is not only the darling of all parties vying to win over, but also the "ghost" they are struggling to pursue.
On this lonely road walking on the edge of a knife, Lin Chujun, a beautiful socialite, is his only soul mate and comrade-in-arms. One of them is in the light, the other is in the dark, and together on this silent battlefield, they ignite an unprecedented flame storm for the peril of the nation.
