Overview
Four teenagers at a British private school secretly uncover and explore the depths of a sealed underground hole created decades ago as a possible bomb shelter.
| Actor | Age then | Age now | |
|---|---|---|---|
 | 19 | 43 | |
 | 24 | 48 | |
 | 16 | 40 | |
 | 22 | 47 | |
 | 35 | 60 | |
 | 33 | 57 | |
 | 21 | 45 | |
 | 37 | 62 | |
 | 21 | 45 | |
 | 20 | 45 |