As DNA evidence from an old case of Spencer's (while he was working for the Atomic Energy Constabulary) is re-examined it appears that the wrong man was sent to jail. Someone tries to coverup the new evidence, causing all eyes to turn to Spencer.
| Name | Type | Role | |
|---|---|---|---|
| Ed Whitmore | Writer | ||
| Dominic Rickhards | Guest Star | ||
| Neil Burgess | Guest Star | ||
| Shameer Madarbakus | Guest Star | ||
| Paul Copley | Guest Star | ||
| Janice Acquah | Guest Star | ||
| Nathalie Cox | Guest Star | ||
| Sean Jackson | Guest Star | ||
| Mark Letheren | Guest Star | ||
| Geoffrey Towers | Guest Star | ||
| Brendan Charleson | Guest Star | ||
| Duncan Henderson | Guest Star | ||
| Dylan Charles | Guest Star | ||
| Howard Teale | Guest Star | ||
| Glenn Chapman | Guest Star | ||
| Sadie Shimmin | Guest Star | ||
| David Calder | Guest Star | ||
| Mamta Anand | Guest Star | ||
| Richard Standeven | Director | ||
| David Thacker | Director |