The film follows Serious Crimes Unit Inspector Chen Shaoqiang (Chris Lee) as he tries to figure out a series of daring armed heists and seemingly unrelated murders. Shaoqiang must revisit his troubled past as a member of the elite Special Tactics and Rescue (STAR) unit, after a botched raid seven years earlier shattered the unity of his special forces team, taking the life of his mentor Wu Tianle (Sunny Pang). The resulting cover up destroys his relationship with Tianle's sister Wu Qizhen (Mico Chang). Shaoqiang's past collides with his present, as the heists are targeted at financial firm BWB Capital, where Qizhen and another former STAR team mate, Wang Zhengming (Jimmy Wong), now work. Shaoqiang must race against the clock to the catch the perpetrators as another heist escalates into a tense hostage situation, where the stakes not only involve the nation's security, but also the lives of his friends.