A moving and inspiring factual drama about the pioneering work on radar by a little know team of scientists in the run up to the Second World War. On 26 February 1935, Robert Watson-Watt demonstrated for the first time that aircraft could be detected by bouncing radio waves off them. By the time the war began in 1939, radar stations were dotted along the British coast, tracking aircraft at distances of 100 miles away.

A group of brave Polish pilots known as Squadron 303 fought in the skies over England in World War II, not just to keep Great Britain free from the Nazis, but also to keep alive the very idea of their own country, which had existed in its modem form for barely 20 years before it was crushed between the opposing jaws of Germany and Russia. Equipped with the almost-obsolete Hurricane airplane and RAF blue uniforms, they fought, and Poland lived.