The beautiful town of Llangollen is rocked by the brutal shooting of a local farmer, Aaron Jenkins. DI Ruth Hunter is called in to track down the murderer. When she and the CID team discover that both Aaron and his wife were having affairs, their focus is on this. However, when there are several more violent slayings, Ruth realises that the murders might be linked to firearms trafficking and the drug gangs of Liverpool. Ruth and her CID team must pursue the armed suspects in a deadly game and stop them before there is another cold-blooded shooting.