DSI Iain Barclay leads cops probing two boys' disappearance. He reunites with ex-colleague DS Amy Foster, racing against time to catch kidnappers before they harm the children.

DSI Iain Barclay heads up a team of police officers that are looking into the disappearance of two boys. He calls in the help of former colleague DS Amy Foster to help with the investigation and must race against time to apprehend the kidnappers before they can carry out their threats.