Bond's loyalty to M is tested when her past comes back to haunt her. Whilst MI6 comes under attack, 007 must track down and destroy the threat, no matter how personal the cost.
During World War II, mathematician Alan Turing tries to crack the enigma code with help from fellow mathematicians.
In November 1984, the Soviet Union's best submarine captain in their newest sub violates orders and heads for the USA. Is he trying to defect or to start a war?