January 1942. Hitler has dragged the Third Reich further towards its own doom by declaring war on the United States.

It is another huge blow to the anti-Nazi figures within Germany hoping to overthrow him and pull the country back from the abyss.

Then details emerge of plans to mass murder Jews within the occupied territories to the east.

As chances of a negotiated peace recede further, Abwehr agent Ako Wolff is again sent to seek Allied support for a coup d'état before it is too late.

However, the Nazi true believers he previously evaded are still pursuing him. This time, they have the evidence to bring him down - or force him to sacrifice his fellow plotters instead.

To escape, he will have to go directly up against the most dangerous of them all, SS General Reinhard Heydrich.