Line Walker 2: Invisible Spy is a 2019 Hong Kong-Chinese suspense crime action drama film. It is adapted from the 2014 TVB series of the same name and serves as a sequel to the 2016 film Line Walker. Directed by Jazz Boon, the film stars Nick Cheung, Louis Koo and Francis Ng. All major characters in the film are different from the original drama series and the first film. It was released in Hong Kong, China and Mainland China on 7 August 2019 and U.S.A on 16 August 2019. International terrorist organization abducted many children, turning them into spies to work at various police forces around the world. After Superintendent Yip (Francis Ng) and Inspector Ching (Nick Cheung) arrested a female hacker named Yiu (Jiang Pei yao) who was about to piece together the schemes of the organization, Superintendent Cheng (Louis Koo) tried to take the case off their hands. Who could be the double agents? They went to the exotic Myanmar and Spain to find out the truth, but soon there are blurred lines between good cops vs bad cops.