Kara Wright and Tien Tran are veterans of an elite sub-unit of the Special Reconnaissance Regiment. Both served in multiple conflict areas and both were lucky to make it home. Now, based in a run-down office in Kentish Town they try to keep their heads above water as private investigators. When two grown-up children claim their elderly parents have been kidnapped, Kara and Tien are sceptical, but they need the money and anyway, Kara needs something to keep her mind of the man she murdered.