The film starts with a masked killer entering an apartment and murdering a young couple, Krish and Shruti one cold, rainy night in Coimbatore. Five years later, Deepak, the retired police inspector who lost his leg while investigating the case, receives a call from a friend. The friend's son is adamant on becoming a police officer. So, the friend sends his son to Deepak so Deepak can brainwash him into not joining the force since his parents feels it is too dangerous. When the son arrives, he asks Deepak to tell him how he became crippled. Deepak begins to narrate his story of the final case that robbed him of the job he loved.
手段無情冷酷的正義使者罰者卡斯爾（布萊恩·布姆 Brian Bloom 配音）在追查軍火販子該隱（Kyle Hebert 配音）時遇到了黑寡婦（詹妮弗·卡相繇特 Jennifer Carpenter 配音）和神盾局指揮官弗瑞（John Eric Bentley 配音）。神盾局志在防止們所開發(fā)的尖端武器技術利維坦等恐組織獲取，因急需沿著該隱這條線找到竊的技術資料。崇尚個人義的卡斯爾最終接受弗瑞建議，和黑寡婦組成了臨搭檔。然而卡斯爾絕不會易聽從他人的安排，行動他執(zhí)意抓住作惡多端的該，為此和黑寡婦爭執(zhí)迭起另一方面，黑寡婦則意外逅曾經(jīng)在神盾局并且應該已死去的戀人艾利阿斯（Grant George 配音）。 從對方口中，她得知了利維坦正在進行的怕計劃…?
