When Professor Willingdon becomes wary of the nuclear weapons he is helping build, he steals a warhead and threatens to detonate it in London in seven days unless the government begins nuclear disarmament. As Willingdon goes into hiding, Detective Folland of Scotland Yard sets out to find him. Willingdon's daughter Ann also joins the cause, hoping she can talk sense into her father before he causes a catastrophe.

"A Boulting Bros. Thriller With a Difference!"

Credits

Roy BoultingDirector

Barry JonesProfessor John Malcolm Francis Willingdon

André MorellSuperintendent G.W. Folland

Olive SloaneGoldie Phillips

Sheila ManahanAnn Willingdon