Jill Lawrence (Edna West) is in Switzerland competing in a clay pigeon shooting competition with her husband Bob (Leslie Banks) and daughter Betty (Nova Pibeam) where they meet Louis Bernard (Pierre Fresnay). Louis is murdered in Jill’s arms. Before dying the Louis reveals to Jill he is a spy with vital information about an assassination at the Royal Albert Hall that must reach the Foreign Office in London. However Jill and Bob were better off not knowing this information as their daughter is kidnapped to prevent them from passing this information on. What will they do? Bob and Jill want to stop the assassination but also want their daughter back.