Torchwood: 67. The Lincolnshire Poacher

Mysterious signals lead Torchwood to the Moil. 4-1-8-4. Greg likes countryside walks and recording the songs of birds. 3-6-2-7. No one knows the secret of the numbers stations. 1-2-0-5. How long has Ianto Jones been trapped in the boiler room? 9-7-2-3. Reality is collapsing. 3-5-8-1. The Lincolnshire Poacher is waiting.