London, 2025. Ethan Cole, a talented young police recruit, made an unexpected choice by joining Criminal Investigation Team 3 at Rosewood Precinct, a unit known for handling small and mundane cases. Amidst the doubts of his seniors and the surprised looks of his colleagues, Ethan had one simple goal: to complete his mission as quickly as possible. Unknown to anyone, Ethan harbors a strange secret: a mysterious system that rewards him with unusual abilities and items, such as an energy drink that can boost his performance. In between the exhausting police routine, he interacts with his unique colleagues: an unlucky patrol officer, a genius forensic expert with extreme hobbies, and a community officer who must deal with trivial citizen issues. Behind the small tasks and daily banter, Ethan slowly realizes that Criminal Investigation Team 3 might not just be a dead-end unit, but the initial stage for something much bigger—both for his career and for the secret system that has now become part of his life.