Miriam is a dedicated social worker who arranges for Kiri, a young black girl, to have an unsupervised visit with her birth grandfather, Tobi, and his second wife before her white foster family officially adopts her. However during the visit Kiri tragically goes missing and as the search for her intensifies Miriam is very publically blamed by the police, the press, and even her colleagues for putting the girl at risk.

Tobi searches for his son, Nate, the prime suspect in the case, and faces up to some uncomfortable truths about his relationship with him. The witch-hunt is intensifying around Miriam as she’s under pressure to admit she is to blame for what happened to Kiri, while Kiri’s foster family of Alice, Jim and Si also find themselves in the media spotlight.

Si realises his relationship with Alice has deteriorated and is determined to find out why, while DI Mercer confronts Nate with new evidence about Kiri’s murder. As we work towards the truth about what happened to Kiri, Miriam realises she has to take responsibility for her actions, Alice’s devastation gets the better of her, and Tobi has a choice to make about his son Nate.