One: Part 2
- Episode aired Aug 23, 2013
The First Doctor and Erasmus explore the mysterious tunnels inside the asteroid, as the Eighth Doctor and Maria find themselves surrounded by the Cyber Fleet.The First Doctor and Erasmus explore the mysterious tunnels inside the asteroid, as the Eighth Doctor and Maria find themselves surrounded by the Cyber Fleet.The First Doctor and Erasmus explore the mysterious tunnels inside the asteroid, as the Eighth Doctor and Maria find themselves surrounded by the Cyber Fleet.