A featurette covering the realisation of the Silurians, the Sea Devils and the Myrka. Featuring Pennant Roberts, Peter Davison, Johnny Byrne, Mat Irvine, with actors William Perrie and John Asquith.
| Creator | C. E. Webber |
|---|---|
| Actor | Sylvester McCoy, Sophie Aldred |
| Country | United Kingdom |
| Production | BBC |