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.

Eccentric Cambridge archaeologist Horatio Smith (Howard) takes a group of British and American archaeology students to pre-war Nazi Germany to help in his excavations. His research is supported by the Nazis, since he professes to be looking for evidence of the Aryan origins of German civilisation. However, he has a secret agenda: to free inmates of the concentration camps.