The first World War is in its third year and aerial combat above the Western Front is consuming the nation's favored children at an appalling rate. By early 1917, the average life-span of a British pilot is less than a fortnight. Such losses place a fearsome strain on Gresham, commanding officer of the squadron. Aces High recreates the early days of the Royal Flying Corps with some magnificently staged aerial battles, and sensitive direction presents a moving portrayal of the futilities of war.

It's the day of the Orange Parade in Glasgow, but for Jon, the thrill of leading the parade and swinging the mace soon turns to horror as he learns the truth behind the costumes and songs.