Tegana sabotages the party's water bags, leaving them in dire need of fresh supplies.
Did You Know?
fell ill during production and so the script had to be re-written to minimise The Doctor's role in the episode. See more
The end of this episode it says next time the Cave of five hundred eyes despite the next episode being called five hundred eyes.
This was the working title and was changed during the week. See more
One day, we'll know all the mysteries of the skies... and we'll stop our wandering.
Then you and I will say goodbye.
Mmm? Oh, not yet! Not for a long time.