Dr Iain Stewart tells the story of how Earth works and how, over the course of 4.6 billion years, it came to be the remarkable place it is today.
| Directing | Annabel Gillings | Director |
| Directing | Sophie Harris | Director |
| Directing | Ben Lawrie | Director |
| Directing | Matthew Gyves | Director |
| Directing | Paul Olding | Director |
