Movie Story : Retired special forces officer Zhong Xiaonan is handed a new mission: guard Lin Zihao, the son of a celebrated Chinese-American scientist, as he travels back to China. Lin's groundbreaking research has drawn the attention of a powerful international syndicate, and the young man soon becomes the target of a kidnapping scheme. Zhong joins forces with Chinese-American police officer Peter, and together they battle the criminals through a series of brutal showdowns to stop the plot and bring Lin home safely.