Based on a true story, a courageous prosecutor, Giovanni Falcone, wages a one-man war against the Sicilian Mafia, facing death threats, a lack of public support and obstruction by crooked officials. Fighting with the help of a reformed mob boss and his determined wife, Falcone launched dozens of prosecutions against the mob. But it was his assassination that made him a hero -- and led to a wave of anti-Mafia reform in Sicily.