This documentary explores the complex science of ballistics, examining how bullets are designed, how they behave in flight, and the devastating impact they have on the human body. Through expert analysis and controlled experiments, the film delves into the evolution of firearms and ammunition, from the early days of simple lead musket balls to the sophisticated, high-velocity rounds used by modern law enforcement and military forces. It also highlights the critical role of forensic ballistics in criminal investigations, demonstrating how the unique markings left on a fired bullet can be used to link a specific weapon to a crime, ultimately aiding in the pursuit of justice.