In 2019, the Hong Kong government proposes a law allowing suspects to be extradited to China. The bill sparks a wave of anger across the city as people fear Hong Kong's autonomy from mainland China is under threat.
In October 2019, as Beijing celebrates 70 years of the People's Republic of China, Hong Kong is being torn apart by violent protests. Using groundbreaking artificial intelligence to protect the identities of the protesters, this film tells the story of four young people locked in a brutal battle with the authorities to defend their way of life.