影片源自真实事件,讲述2015年8月一列从阿姆斯特丹开往巴黎的高速列车上发生了恐怖袭击事件,三位美国士兵挺身而出将歹徒制服的故事,电影将根据三位当事人的回忆录改编。In the early evening of August 21, 2015, the world watched in stunned silence as the media reported a thwarted terrorist attack on Thalys train #9364 bound for Paris--an attempt prevented by three courageous young Americans traveling through Europe. The film follows the course of the friends' lives, from the struggles of childhood through finding their footing in life, to the series of unlikely events leading up to the attack. Throughout the harrowing ordeal, their friendship never wavers, making it their greatest weapon and allowing them to save the lives of the more than 500 passengers on board.