"सबसे खतरनाक और अनुभवी सैन्य कुत्ते को एक लड़की ने ट्रेन किया, जब सभी ट्रेनर असफल हो गए||

Megan ek troubled young woman hoti hai jo apni life ko direction dene ke liye Marines join karti hai. Wahan uski duty bomb-sniffing dog Rex ke saath lagti hai. Dono Iraq war ke dauraan dangerous missions par jaate hain jahan unhe IEDs (bombs) detect karne hote hain. Time ke saath Megan aur Rex ke beech deep trust aur emotional connection develop hota hai. Ek mission mein dono injured ho jaate hain, aur baad mein jab Rex ko alag kar diya jata hai, Megan usse wapas adopt karne ke liye fight karti hai.