The invention of a machine that can cause remote explosions brings the attention of Scotland Yard and Bulldog Drummond.

Top Cast

John HowardCaptain Hugh C. Drummond

Heather AngelPhyllis Clavering

H.B. WarnerColonel Nielsen

Reginald DennyAlgy Longworth

E. E. CliveTenny

Jean FenwickLady Beryl Ledyard

Zeffie TilburyAunt Meg

George ZuccoRolf Alferson