这部影片主要讲述的是女主人公苏珊-库伯充当卧底，试图查出事情真相的故事。原本苏珊只是一名办公室文员，由于组织内部所有的间谍身份都暴露无遗，苏珊由此获得机遇，混入了史上最危险的军火商集团

由梅丽莎-麦卡西饰演的女主人公苏珊是一名中情局的分析师，尽管苏珊能够帮助处理一些危险的任务，却还是籍籍无名的后勤人员，一次行动中，苏珊的搭档布莱德利（裘德-洛饰演）失踪了，搭档的失踪也波及了另一位中情局探员（杰森-斯坦森饰演）的安危，苏珊请命充当卧底，就是为了拯救这个岌岌可危的世界，并且找出搭档的下落，在查找事情真相的过程中，苏珊与美女头目（罗斯-拜恩饰演）斗智斗勇，整个过程十分的惊险，事情的真相也远没有苏珊想的那样简单。

This film mainly tells the story of the heroine Susan Cooper acting as an undercover agent, trying to find out the truth of the matter. Originally, Susan was just an office clerk. Since all the spy identities in the organization were exposed, Susan got the opportunity to mix into the most dangerous arms dealer group in history

The heroine Susan played by Melissa McCarthy is a CIA analyst, although Susan can help Handling some dangerous tasks, but still unknown logistics personnel, in one operation, Susan's partner Bradley (played by Jude Law) disappeared, and the disappearance of his partner also affected another CIA agent (played by Jude Law). Jason Statham), Susan asked to act as an undercover agent in order to save this precarious world and find out the whereabouts of her partner. In the process of finding out the truth, Susan and the beauty leader (played by Rose Byrne) ), the whole process was very thrilling, and the truth of the matter was far from as simple as Susan thought.