During World War II, Britain's top secret Special Operations Executive plotted to assassinate Hitler. A small department of SOE known as Section X had the complex task of investigating how, when and where the deed might be done. They had also selected members of Hitler's inner circle for elimination, which included Goebbels, Himmler, Bormann and Kaltenbrunner. Only Section X and a handful of other SOE staff knew of this top secret project, codenamed Operation Foxley. As history has shown it turned out to be a pipedream, but even so, Section X made a significant contribution to the Allied war effort. This work describes efforts to discover as much as possible about its intended targets, and questions whether a successful Operation Foxley would have helped or hindered the Allied cause. It gives an insight into the shadowy world of Britain's wartime intelligence activities.