Episodes
| Episode | First Broadcast | Repeated | Comments |
|---|---|---|---|
| 01 | 20110520 | 20121111 (BBC7) 20121112 (BBC7) 20140310 (BBC7) 20140311 (BBC7) | The Time Lord, Tegan, Turlough and Nyssa run into a group of hygiene-obsessed settlers. |
| 02 | 20110523 | 20121118 (BBC7) 20121119 (BBC7) 20140311 (BBC7) 20140312 (BBC7) | The inhabitants of Purity Bay turn violent, and there's greater danger in store. |
| 03 | 20110524 | 20121125 (BBC7) 20121126 (BBC7) 20140312 (BBC7) 20140313 (BBC7) | Nyssa and Turlough uncover the secrets of the Takers, and the Time Lord walks into a trap. |
| 04 | 20110525 | 20121202 (BBC7) 20121203 (BBC7) 20140313 (BBC7) 20140314 (BBC7) | The settlers confront their demons, but as the time travellers leave, one reveals a secret |