At Bletchley Park, Alan Turing must persuade a skeptical team to build a machine that can break Enigma before the war is lost, while concealing the self the law condemns.
- Scenes 1–12
Turing is investigated as a guarded outsider in 1951, then enters Bletchley in 1939 looking for the puzzle he can solve.
- Scenes 13–30
He sees the scale of Enigma, believes a machine can solve it, and grows isolated from colleagues who make little progress.
- Scenes 31–50
Churchill’s order gives Turing authority and his half-built machine advances toward sustained work.
- Scenes 51–88
Joan joins the project; the team builds and tests the machine while Turing learns to rely on collaborators.
- Just before
- Scene 87
Turing and the team hurry from Hut 8 to the machine hut with the intercept.
- Scene 88
The team configures Christopher with the known settings and 6 a.m. message; the machine stops on a candidate rotor setting, which Turing writes down.
- Scene 89
Turing tests the candidate on a dummy Enigma machine; the message decodes to a German report locating the KMS Jaguar, and the team erupts in celebration.
- Scene 90
This scene