![](https://image.tmdb.org/t/p/original/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![](https://image.tmdb.org/t/p/w342/t3hhTqnGrCkExLm0JxAEO8K6dEz.jpg)
Commando Raid (IV)
Once free, the Doctor and children fly to the island "which is joined by sand". This is part of the cryptogram, and they sight it from the air. When they land, they soon find the salamander and mineral with the help of a metal detector. Successful again, they head for home to decipher the next cryptogram.
![](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
Other episodes for this season
![The Stranger Arrives (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Stranger Arrives (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Stranger Arrives (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Stranger Arrives (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Island Adventure (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Island Adventure (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Island Adventure (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Island Adventure (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Lost in the Desert (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Lost in the Desert (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Lost in the Desert (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Lost in the Desert (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Commando Raid (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Commando Raid (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Commando Raid (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Commando Raid (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Race to the Finish (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Race to the Finish (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Race to the Finish (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![Race to the Finish (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Last Mineral (I)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Last Mineral (II)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Last Mineral (III)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)
![The Last Mineral (IV)](https://image.tmdb.org/t/p/w300/4HPrRv1mxJvy2DVoipwjUOkjuun.jpg)