"Scores of Allied pilots during World War I surely muttered, "Curse you, Red Baron!" as the notorious Baron Manfred von Richthofen closed in with guns blazing from his distinctive bright-red German fighter. But then on April 21, 1918, the Baron took a bullet in the chest while in hot pursuit of his 81st downing. Was the fatal shot fired by another plane that briefly engaged him? Or did it come from the ground? With state-of-the-art animation and footage filmed at the actual locations, "Who Killed the Red Baron?" sheds new light on the most celebrated whodunit in aviation history. Setting the famous incident in context, the program explores the arms race that saw aircraft develop from fragile scouting planes at the start of the war in 1914 into agile and efficient killing machines by "Bloody April" of 1917, when improved German aircraft and tactics decimated Allied air forces. That month the Baron himself racked up an amazing 21 combat victories. The program also features commentary from noted aviation experts and from relatives of the hunter and hunted on the day of the Red Baron's final mission. Hermann von Richthofen, grand-nephew of the Baron and former German ambassador to NATO, reminisces about his great uncle's rise from mounted cavalry officer to master of a completely new style of warfare that pitted fast, maneuverable flying machines against each other in deadly duels in the sky. Denny May, son of novice Canadian pilot Lt. Wilfrid "Wop" May, describes his father's close brush with death when on his first combat patrol he found himself hunted by the Red Baron�a contest the lieutenant should have ignominiously lost. In a fascinating forensic examination aided by aviation historian Norman Franks, coauthor of The Red Baron's Last Flight, the program lays out the evidence and examines rival notions of his death. The inquest draws on rarely seen original documents and reports from eyewitnesses to explore the nature of the Baron's wound, the direction and range from which the bullet was fired, and the possible candidates for the Baron's killer. The program also probes why the Baron was breaking his own rigid rules of engagement by pursuing May far behind Allied lines."