Mac (Leon Lai), Bird (Jordan Chan), Sam (Sam Lee) and Michelle (Cher) are the elites of an international thief organization. They have always worked together seamlessly and have completed many difficult tasks. This time, the four of them are going to Malaysia to spy on a scientist, hoping to steal the cancer drug he has just developed. However, when they sneaked into the pharmaceutical factory, they were ambushed and realized that this mission was a scam. As the four tried to escape, Mac failed, but was saved by a mysterious and sexy woman, June (Shu Qi). From June, Mac recalled the past when his ex-girlfriend was betrayed by her old partner and died, and he got an important clue to solve the mystery.