Based on the work of French journalist Jerome Pierrat, who has investigated organized crime in France for years, "The Last Panthers" opens with a daring diamond heist bearing all the hallmarks of a gang known as the Pink Panthers. But the tragic death of a little girl during the raid sets a collision course in motion involving a British insurance agent (Samantha Morton), a French-Algerian cop (Tahar Rahim) and a Serbian diamond thief (Goran Bogdan).