Part 1

Originally published in English in 1956, this book is divided into 3 parts: the first outlines how, after 1933, those outside Germany began to become increasingly afraid of sinister operations on the part of German agents and the partisans of National Socialism.

Part 2

The second part examines the role of the German Fifth column during the war.

Part 3

The third part analyses the role of the groups which were living outside Germany at the time Hitler started his assault.