Mr Standfast - John Buchan part 1 of 2

In the first part, Richard Hannay, who has recently been knighted, is called back to service from his quiet rural life in the Cotswolds. Hannay is assigned the task of infiltrating a group of pacifists in England who are suspected of being German spies. To do this, he takes on the undercover persona of Cornelius Brand, an aviator with pacifist views.