Kaleb, a beloved German Shepherd, is separated from his family when the Nuremberg Laws are enacted in WWII Berlin. He is adopted by an SS Officer who trains him to attack and round up Jewish people at a concentration camp. Kaleb is well cared for and good at his job until one day when he is distracted by a familiar scent. His original master, a young boy named Joshua, has arrived as a prisoner of the camp. Kaleb has not lost his loyalty to Joshua who finds solace in secretly visiting his dog at night. Joshua's life is at risk.