Wartime tale of a group of British scientists efforts to develop the first radar system. They did it just in time for it to be used in the Battle of Britain against the might of the Nazi Luftwaffe. Without it the little island could well have been overrun.
This 1942 fictionalized biopic chronicles the true story of how two of the most remarkable men in aviation history - visionary Spitfire designer R.J. Mitchell and his test pilot Geoffrey Crisp - designed a streamlined monoplane that led to the development of the Spitfire.