Five survivors are striving to make it to the earth's surface against an energy which is killing them in the way they fear most.
| Actor | Role |
|---|---|
 Mark AddyMurray | Murray |
 Liza TarbuckWildeve | Wildeve |
 Lowri Ann RichardsBee | Bee |
 Robert DemegerJanus | Janus |
 Wendy NottinghamAugust | August |