PeterBoyd探長指揮著一支經(jīng)過多種訓練的警探和科學家的警察隊伍-懸案小組，使用現(xiàn)代的方法和原來調(diào)查時還沒有的新科技來專門調(diào)查的未破獲的老謀殺案。Det.Supt.PeterBoyd(playedbyTrevorEve)istheleaderofamulti-disciplinepoliceteamofdetectivesandscientists,theColdCaseSquad,whichinvestigatesold,unsolvedmurdercasesusingmodernmethodsandnewtechnologythatmaynothavebeenavailableduringtheoriginalinvestigation.LedbyDetectiveSuperintendentPeterBoyd(TrevorEve)theColdCaseSquadinvestigatesseriouscrimeswhichhavegoneunsolved.Armedwiththelatesttechnologicaladvancesandoldfashionedhardwork,PsychologicalProfilerGraceFoley(SueJohnston),ForensicPathologistFrankieWharton(HollyAird),DetectiveConstableMelSilver(ClaireGoose)andDetectiveSergeantSpencerJordan(WilJohnson)wakethedeadforcluesandanswers.