| Episode | First Broadcast | Repeated | Description |
|---|---|---|---|
| 01 | 20030331 | * 20080211 | Enter the alien and dangerous world of the Northumbrian wood ant. Extraordinary natural history documentary. First in a new five part series that charts a year in the life of two colonies of wood ants, with the different hazards posed by the changing seasons. Presented by Peter France. |
| 02 | 20030401 | * 20080212 | It's Springtime and our ants are greedy for food, but the tree fellers are getting closer and closer to their nest. Second in a new five part series charting a year in the life of two colonies of wood ants, with the different hazards posed by the changing seasons. Presented by Peter France. |
| 03 | 20030402 | * 20080213 | Early summer, and the wood ants are preparing to mate - but they are in danger when cyclists race through the forest. Third in a new five part series charting a year in the life of two colonies of wood ants, with the different hazards posed by the changing seasons. Presented by Peter France. |
| 04 | 20030403 | * 20080214 | Late summer means warfare in the ant world, as badgers and picnics disturb their trails. Natural History Unit documentary. Using specially designed radiophonic techniques, this series takes listeners into the extraordinary world of two colonies of Wood Ants - one in a pine forest the other in a deciduous wood. |
| 05 LAST | 20030404 | * 20080215 | Through special microphones, listeners are immersed in the noisy world of the wood ant nest, and the surrounding forest. Using specially designed radiophonic techniques, this series takes listeners into the extraordinary world of two colonies of Wood Ants - one in a pine forest the other in a deciduous wood. |