R.J. Mitchell battles time, illness, and global tensions to create a revolutionary fighter aircraft, shaping Britain's future as war clouds gather over Europe.
The film follows aviation designer R.J. Mitchell as he pushes engineering boundaries, driven by a growing awareness of Europe's shifting political landscape and Germany's accelerating militarisation.
Supported by test pilot Geoffrey Crisp, Mitchell refines his aircraft designs through relentless experimentation, international competition, and an urgent belief that Britain will soon need superior air power.
Leslie Howard's portrayal highlights Mitchell's determination and creative brilliance, revealing the personal sacrifices behind a machine destined to play a crucial role in Britain's defence.