In the autumn of 1937, the Telecommunications Bureau of the British Concession in Tianjin. Maintenance worker Lin Mo's life has changed from "fixing radio stations" to "fixing Japanese soldiers" - he has a timed remote control blasting system in his head, but unfortunately it can only be used seven times. What's even more shocking is that the person on the line died. The organization determined that he was a traitor, and the head of the Japanese secret service, Sato Keigo, was using him as an appetizer. Lin Mo slapped his thigh: Anyway, he will die anyway, why not explode! He tricked Auntie Tie, who owned a restaurant, to work as a logistics supporter, enlisted the master thief Du Sangen to collect materials, asked the radio singer Bai Lu to pass on information, and then hired a chain-smoking blaster to provide technical guidance. A team with a unique style officially debuts. Faced with Sato's encirclement and suppression, Lin Mo took out the remote control: "Who dares to shoot first in the concession? I can't blow you up." The bridge exploded, and the Japanese soldiers and their vehicles fell into the Haihe River; the military pay truck exploded, and the people robbed all their silver coins and dispersed in a hurry; the spy stronghold exploded, and Sato was so angry that he drew a knife and cut the table. Every blast is stuck on the edge of extraterritoriality, leaving the enemy dumb and eating coptis. But every opportunity out of seven is one less. When his comrades fell in a pool of blood, and when the last bomb was aimed at the Japanese concession arsenal, Lin Mo's finger stopped on the remote control - to explode or not to explode?