2. A Kind of Grief

Zoë goes digging for answers as Sarah starts to spiral. Hamza is under pressure to keep a lid on the crisis.

3. Filthy Work

Sarah winds up on an unexpected road trip. Zoë begins pulling threads left behind by Joe and suspects something bigger is at play.

4. My Friends Don't Like Me

While hiding out, Sarahs learns more about Downey. Zoë ruffles feathers as she seeks new collaborators for her investigation.

5. Slow Dying

Zoë makes a startling discovery that expands the scale of the conspiracy. Sarah and Downey trek north, revealing their pasts along the way.

6. Neglected Waters

A dangerous game of cat and mouse begins on the train to Scotland. Sarah and Zoë try piecing together Dinah's exact location.

7. Lights Go Out

Downey and Amos converge as the race to find Dinah reaches a breaking point. Sarah must take a leap of faith.

8. What Will Survive

Everything Sarah has fought for hangs in the balance.