As a civilian technical consultant, Lin Mo never imagined that he would set foot on a real battlefield. He was temporarily assigned to a Delta team and was supposed to provide signal support behind the scenes. However, a sudden ambush involved him in a crisis of life and death. In the hail of bullets and endless pursuit, he lost his identity and backup, and became an "anonymous" without a codename in this elite team. Facing a group of top-level special forces who have experienced hundreds of battles, Lin Mo must use his only weapon--his brain and technology--to find his place in this desperate situation and prove that a "clerk" can also be the key to deciding the situation of the battle. He will start from "nameless" and win a real code name for himself.