![]() | Six impossibly intelligent children from all over the world with dangerous psychic powers hide in a church in England after the military tries to experiment on them. Besieged, they warn the military to back off before carnage ensues. |
| Ian Hendry | - | Dr. Tom Llewellyn |
| Alan Badel | - | Dr. David Neville |
| Barbara Ferris | - | Susan Eliot |
| Alfred Burke | - | Colin Webster |
| Sheila Allen | - | Diana Looran |
| Ralph Michael | - | Defense Minister |
| Patrick Wymark | - | Commander |
| Martin Miller | - | Prof. Gruber |