Based on a best-selling book by New York Times national security correspondent David E. Sanger, The Perfect Weapon explores the rise of cyber conflict as the primary way nations now compete with and sabotage one another. Directed by Emmy-winning filmmaker John Maggio (Panic: The Untold Story of the 2008 Financial Crisis) and featuring interviews with top military, intelligence, and political officials on the frontlines of cyberterrorism, the documentary brings to light the combatants and innocent victims caught in the crosshairs of a hidden war that has been going on for decades — a war that America started, but has no idea how to finish. Traveling from the deserts of Iran and Las Vegas to the back alleys of Beijing and Moscow, the film chronicles America's pursuit of enemies who have plotted against its institutions, its economy, and its democracy. A never-before-seen look inside the secret world of spies, hackers, and scammers in the lead-up to the 2020 U.S. elections, for which fear of cyberattacks has mounted to an all-time high, The Perfect Weapon is a timely reflection on the ultimate price — and potential "victors" — of this high-stakes conflict.
一家饭店的老板孙大涛被人用枪打死在自己的饭店门前，凶手不知去向。 刑警唐琦调查了解到，孙大涛为女火争风吃醋，曾将出狱不久的流氓沙连福砍伤，沙此刻正躺在市第二医院里。 深夜，市二医院病房里地下暖气管道的石盖板被轻轻托起，钻出几个黑影将沙连福人不知鬼不觉地背走了。 十天以 后，隐藏在小县城的沙连福伤差不多好了。他让手下王岩去弄钱准备逃走。唐琦得到报告知道王岩要去天府酒家取钱，便与同事胡洪瑞化装成大款，来到天府酒家与王岩大吃大喝，从醉酒的王岩口中套出真话，王岩说出杀孙大涛是哥儿们千的，背沙连福是自己干的，起因是孙大涛与沙连福为了一个名叫丽丽的“三陪女郎”结下了仇。 沙连福叫丽丽把手中的存款全部提出。丽丽和装成大款的胡洪瑞来到“首首圣”餐厅，按沙的指示将有毒的饮料送给胡洪瑞。胡早已识破阴谋用锥子扎破易拉罐，饮料由底部流出。然后他假装中毒，看着沙连福挟丽丽而去。 在公路口，唐琦发现了劫持出租车逃跑的沙连福，双方激战，沙以丽丽为人质弃车逃入小树林，胡洪瑞当机立断，摘下身边战士头上的头盔戴在自己头上，冒生命危险引罪犯露头，武警们用狙击枪将罪犯沙连福击毙。
某跨国公司总裁，临终前决定将遗产交给在大陆的侄子陆江教授。为此，引出一场我公安人员与国际间谍 国内特务的一场惊险斗争。
1986年是中国的虎年，动物饲养员平萍（汪清 饰）莫名死在虎笼前，而老虎则不知去向。林江市公安局接到报案，随即着手调查。此时，新加坡律师仲明达（周楚 饰）受托回国寻找老友杜开源在国内失散的女儿，出国继承遗产。侦察员韦伟（牛飘 饰）根据他人描述，决定并案调查。他与助手朱红（寒星 饰）在一皮毛加工地找到了被杀老虎的皮，根据店主供述，他受人指使杀死老虎，并未杀人。此时局里反馈的消息证明，在异地演出的马戏团驯兽员美美（李焕 饰）是杜开源之女，但她在返回途中遭人暗算。种种迹象表明，那个南洋来的仲明达有很大作案嫌疑。思忖半天，韦伟决定将计就计...... 本片根据顾工小说《第三次谋杀》改编。
