Decoded

China's Ministry of Intelligence recruits Rong Jinzhen (Liu Haoran), a brilliant mathematician, during World War II to break enemy codes. He works alongside an American cryptographer (John Cusack) under a senior officer (Chen Daoming), racing to decrypt transmissions. What begins as intellectual competition between Rong and the American becomes mutual respect, two men bound by the secrets they carry and the isolation of work that cannot be shared.