Ling Jing (played by Huang Xiaoming) has become the number one sharpshooter in the Hong Kong police sniper team for four consecutive years. His boss and teammates appreciate him well, but he has a high opinion of himself but doesn't like to deal with others. His only happiness is his wife's company.During a bandit suppression operation, Ling Jing accidentally killed the hostages - the only son of the richest man in the city.The wealthy businessman kept putting pressure on the police department, and Ling Jing was sentenced to four years in prison by mistake.Since Ling Jing left, Keming (played by Richie Richie), the second-place police force, has become the strongest one. He was the one who made a fake certificate and caused Ling Jing to be imprisoned.Ling Jing vowed to avenge his police force and Keming.O'Zai (played by Edison Chen) is a top student in the police academy. He has a magical shooting skills and first-class gun skills. He was soon recruited by Keming to join the Hong Kong police sniper team.After hearing about Ling Jing's story, I was curious about him, and met Ling Jing by chance and received guidance and became friends.Ling Jing frequently provoked the police force, which led to the entire sniper team being dispatched to round him up.Ling Jing fought to the death, fighting the police force alone.Unexpectedly, Keming used himself as bait and O's assist, which made him accidentally exposed his position.In the end, which side will win?And can Ling Jing find the fairness he deserves?