Police officer DI Liz Nyles works in the highly secretive witness protection department. Soon, a devastating incident draws her into a dangerous conspiracy.
Liz pursues her unofficial investigation into DI Brandice and his possible connection with organised crime, and the unit comes under pressure.
Pressure from above threatens Liz's secret investigation as she discovers some disturbing truths which lead her further into the conspiracy.
Liz fights to prove foul play, but she is sabotaged and also comes under unwelcome scrutiny from Wheatley - meanwhile, the danger gets closer to home as a new suspect emerges.
The conspiracy takes an unexpected twist as Liz makes an alarming discovery which brings her closer to the gangster Eddie Crowther.
Liz puts the final pieces of the conspiracy together and understands the true nature of her relationship with Brandice.
