A troubled young woman runs away from home, unaware from the outside world that she's been missing and presumed dead for 20 years.
| Actor | Role |
|---|---|
| NNina TaylorLauren Howard / Ava Morgan | Lauren Howard / Ava Morgan |
 Steve CarrollGraham Howard | Graham Howard |
| KKim WatersMarie Howard | Marie Howard |
| AAnn-Marie DoggettRachel Boon | Rachel Boon |
| MMark WellsDS Stephen Miller | DS Stephen Miller |
| JJo LayDC Natalie Gooch | DC Natalie Gooch |
 Leila KotoriCharlotte Reynolds | Charlotte Reynolds |
| TToby OversonSchool Child | School Child |
| HHarvey OversonSchool Child | School Child |
| AAndrew HutchinsonSchool Child | School Child |
| CCatherine Richmond-MaudSchool Child | School Child |
| LLexie MainScarlett Boon | Scarlett Boon |
| RRory AnthonyLiam Boon | Liam Boon |
| DDominic ZwemmerJim Cant | Jim Cant |
| AAnnie BrobbyDI Alison Joyce | DI Alison Joyce |