When two OSS agents go missing on American soil, President Roosevelt once again calls upon his trusted aide, Gaston Carson. The search takes Gaston to Santa Fe, New Mexico where he lands in a hotbed of frantic activity surrounding the top secret Manhattan Project and a remote area outside of town. Gaston soon discovers the missing agents are involved in domestic spying outside of the scope of the OSS charter. Santa Fe is the center of international spy activity and Gaston learns he cannot trust anyone, even those he is working with. When President Roosevelt suddenly dies, Gaston is left with no connection to the White House and no one in the Government he can trust. When his wife and child are taken by enemy agents trying to stop the development of the atomic bomb, Gaston must find a way to save his family and prevent the atomic bomb from being sabotaged before a critical test. This is book four of the Code Series featuring Domestic Diplomat, Gaston Carson, during World War II.