Daniel and Zara get an alarming call from the police, while Cassidy gets a break in his case against Nicholas Thorne. A young woman is asked to deliver some important letters, but who is she delivering them to and why?
| Creator | Chris Murray |
|---|---|
| Actor | Elisabeth Dermot Walsh, Dex Lee, Adrian Lewis Morgan |
| Country | United Kingdom, Mexico, South Korea |
| Production | BBC |