Alex is a spy. He's not really good at it, but does his best. He's been run out of Austria as Hitler took it over, now he's wondering if Hitler is coming for Switzerland. He tries to do what he can to help the Czech spy network, and the French network, but the more he tries the less they take the info passed on and use it.
I really enjoyed this view of spies. No fancy weaponry, just yeoman doing what they can for their countries.