England, at the start of World War Two. Mysterious wireless broadcasts, apparently from Nazi Germany are heard over the BBC. They warn of acts of terror in England, just before they take place. Baffled, the Defense Committee call in Sherlock Holmes.
2011
1943
2010
2019
2018
1921
1955
1950
2001
1968
1974
2023
1999
2020
2022
1923