TheseriesisaboutaCustomsOfficer,MarcusAshton(Ash)whoisrecruitedtoanewlawenforcementteamtaskedwithhuntingdownsomeofBritain"smostwantedcriminals.TheseriesisinspiredbythebookofthesamenamewhichdetailsthecareerofformercustomsagentCameronAddicott,writtenbyKrisHollington.
