赤道

韩国秘密核武器神秘失踪，同时载着军方手提装置的飞机在中国境内坠毁。韩方接到消息，一名疑似绰号“赤道”的危险人物（张震 饰）带着助手“信差”（文咏珊 饰）将于香港实行秘密武器交易，韩国武器专家崔民号（池珍熙 饰）与特工朴宇哲（崔始源 饰）奉命前往调查。香港反恐特勤组主管李彦 明（张家辉 饰）与督察范家明（余文乐 饰）协助韩方寻找武器，而核物理教授肇志仁（张学友 饰）也受邀协助判案。武器很快被寻回，没想到竟还隐藏着潜在危机。正当香港及韩国警方决定送还武器回韩国之际，大陆安全局高管（王学圻 饰）带着助手袁小姐（冯文娟 饰）突然出现，三方陷入周旋之中，原来“赤道”另有其人，而他们一伙儿的阴谋也开始实施……A portable nuclear device, DC8, has been stolen from South Korea by a ruthless criminal (Chang Chen) and his accomplice (Janice Man). As the weapon will change hands in Hong Kong, Lee (Nick Cheung) from the territory's Counter Terrorism Response Unit sets up a task force, which includes police officer Fan (Shawn Yue), to deal with the crisis. He enlists physics professor Siu (Jacky Cheung) as an adviser and has to work with South Korean weapon experts Choi (Ji Jin Hee) and Pok (Choi Si Won). Despite their efforts, the elusive criminal mastermind, Helios, is always a step ahead of Lee.