冤家再聚首，這次失守的是脾氣或真心？
郝潔西剛從洛杉磯調回芝加哥調查站，偏偏就得跟她在學院受訓時期的老對手薛強恩搭檔進行臥底任務，攜手假扮一對餐飲業的投資客。倒不是強恩有什麼可議之處，他不只盡責又專業，還性感到冒煙呢。只是他們倆實在有太多針鋒相對的「快樂往事」，接下來彼此合作的幾個星期想必會相當漫長。
薛強恩很有機會加入最精英的人質救援隊，這次臥底任務很可能是他的告別之作，他很希望能劃下一個完美句點，卻沒想到自己得跟總是領先別人兩步的「資優生」郝潔西搭檔。如果他們能把這件案子辦完並且沒有中途勒死對方，就是奇蹟了。
一個英勇的女主角和一個遊騎兵出身的男主角，兩人的故事說法向來不盡相同。究竟要採用誰的故事版本，才能走上一開始就註定的快樂結局呢？
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FBI agents Jessica Harlow and John Shepherd have a past. The former lawyer and cocky Army Ranger clashed during their training at Quantico and gladly went their separate ways after graduating from the Academy. Six years later, the last thing either of them expects is to be assigned to work as partners in a high-profile undercover sting.
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