July 1940.
As Britain braces itself for invasion, ex-Tommy and safecracker Bill O'Hagan finds himself forced to serve his country once more.
A web of Nazi trickery threatens to ensnare the Duke of Windsor, who has fled to Portugal with Wallis Simpson at his side.
His fate, and the fate of Britain, rest on Bill, who must crack an enemy safe and get its contents to safety.
But with the layers of deception drawing ever more tightly around them, Bill and the Duke learn they aren't the only players in this game. And Berlin is plotting its greatest move yet...
