PeterBoyd探長指揮著一支經過多種訓練的警探和科學家的警察隊伍-懸案小組，使用現代的方法和原來調查時還沒有的新科技來專門調查的未破獲的老謀殺案。　　Det.Supt.PeterBoyd(playedbyTrevorEve)istheleaderofamulti-disciplinepoliceteamofdetectivesandscientists,theColdCaseSquad,whichinvestigatesold,unsolvedmurdercasesusingmodernmethodsandnewtechnologythatmaynothavebeenavailableduringtheoriginalinvestigation.　　Ledb..ddd