- Keira Knightley (Helen Webb)
- Ben Whishaw (Sam Young)
- Sarah Lancashire (Mrs. Reed)
- Andrew Buchan (Wallace)
- Ella Lily Hyland (Williams)
Episode: Peace Summit
Air Date: 2026-11-05
Runtime: 54 min
Kestrel enacts its plan ahead of Wallace's peace summit — forcing Sam to decide where his loyalties lie, and pushing Helen to admit a dangerous truth.