On has been living in Amsterdam for many years. He is famous for being exceptionally street-smart. Years ago, On joined force with Macau crime boss Ban in a big business deal. They both appreciated the other's charisma and unique character. After a series of life-and-death incidents, their friendship was firmly established.
On is suddenly invited by Ban to Macau to help solve a pressing matter. Upon arrival, On is told that Ban's daughter Hei has been kidnapped by an unknown group of culprits. Ban's assistant Leo, who was there when the kidnapping took place, says that Hei was snatched away by several men riding on motorcycles. To repay the debt of Ban, who once saved his life in Europe, On agrees to offer a helping hand without any hesitation. However, there is a big challenge that On can ever expect.