This book uncovers sensational evidence of the techniques and plans of Axis saboteurs operating in the United States. Told by two journalists who have won a nationwide reputation for their investigations into fifth-column activities, and carefully documented with hitherto-unpublished data, this book reveals the amazing ramifications and devious workings of the secret Axis offensive against American war production and morale. Not only do the authors expose the menace and extent of physical sabotage; they also present, for the first time, the full story of how the Axis has devised and is using an entirely new weapon — psychological sabotage.

Sabotage! contains information that every American should know. It teaches a vital lesson: that in this era of total warfare, sabotage has become the problem of every patriotic man and woman, for it directly affects their security and their very lives.

Containing approximately fifty pages of secret papers, photographs, spy letters, and other exclusive documents, Sabotage! traces Nazi and Japanese conspiracies aimed at wrecking or obstructing the American war effort. It reveals, among other things, the devices and techniques of Nazi saboteurs in America; how ships are sabotaged; who the "brains" are behind the sabotage network; how saboteurs get paid; how saboteurs of morale have been working among us; and, most important of all, how Americans can fight against sabotage.