As The Secret Warriors begins, it is 1942. In Washington, D.C., the OSS, under FDR and "Wild Bill" Donovan, escalates its tactical war, and plunges into worldwide covert operations. In London, a difficult, exiled Charles de Gaulle disrupts major invasion plans, and it is up to the OSS to force the general's hand. In the Belgian Congo, a desperate air maneuver drops OSS agents into Africa, with the aim of smuggling out uranium ore essential to the arms race. In Morocco, OSS men plan a rendezvous with anti-Nazi Germans in an attempt to obtain critical weapons secrets.