Level 7 is the deepest and the safest level in a nuclear bunker. The nerve centre of the government is based here. But how safe is it?
Anthony Bate
General
Keith Buckley
X.127
Michele Dotrice
R.747
David Collings
X.117
Tom Criddle
Doctor
Jane Jordan Rogers
Woman Commandant
David Cargill
Radio Man One
Michael Bird
Colonel
