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.
1915
1912
1921
1923
1993
NaN
1999
1987
2019
2023
1968
2022
2011
2006
2017