The future. Criminals serve prison sentences before they commit their crimes. Prisons are on new planets that are being colonised. After serving their time, the former prisoners return to their home planet.
| Directing | Peter Sasdy | Director |
| Writing | William Tenn | Story |
| Writing | Paul Erickson | Adaptation |
| Production | Irene Shubik | Producer |
| Production | George Spenton-Foster | Associate Producer |