Cracking a Killer's Code, Part 3
S01E03 - Airdate: 2012-09-20
Runtime: 45 min
Thrown into a chilling confrontation with the murderer they have so brilliantly tracked down, Susan and the other Bletchley women become locked into a ever more dangerous game of cat and mouse that leads to a seemingly inescapable conclusion.
Episode details and rating from TVmaze.