Lightfoot is determined to find the remainder of the guns stolen from the army, as masterminded by Major Ellison. Keeping Ellison under constant surveillance, he is followed to a property owned by well known criminal figure, Mick Kounos. Kounos denies any involvement.

Chris vows to stand by Grace as she faces an internal enquiry regarding her apparent theft of drugs from the customs evidence room. She presents a plausible explanation for her actions to an internal investigations panel, and all seems well... until she receives a call informing her the panel cannot accept her explanation and will turn the matter over to the police.