Sarah Mason splits her time between her work as a detective in South London and being a single mother to her baby daughter.
It's a tough life, but she gets by.
But Sarah's world falls apart when she receives a devastating text saying her daughter has been taken - and, hell-bent on punishing
Sarah, there's no telling what the kidnapper will do.
Sarah is forced to stand back while her team hunt down the man who has stolen her little girl. But sitting on the sidelines isn't her style.
Sarah knows that to save her daughter, she must take matters into her own hands - at any cost.