Overview
The Doctor struggles to help the only remaining crewmember of a crashing gunship. The people of the planet below offer to save his life, but at a dear cost to the life he's lived for hundreds of years.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 54 | 65 | |
 | - | - | |
 | 58 | 69 | |
 | 73 | January 25, 2017 (77) |