ATimetoHeal-TheteamiscalledouttoNorthernIrelandtoinvestigatethebodiesoftwomenkilledbyparamilitariestwentyyearsago.ForSam,itisacasethatissoontoturnpersonal…　　DeathbyWater-Tensionsarerunninghighinthe‘leaderless’teamasLeoandHarryclashoveraninvestigationintoanoutbreakofbreathingdifficultiesamongchildrenontheSouthCoast.　　NowhereFast-Whenmembersofaracehorseowningsyndicatearekilledinahelicoptercrash,LeoandHarryinvestigate–andanunexpectednewfaceatthemortuarylendsahelpinghand.　　Body21-Approachedbyagroupofsurvivorsfromarecenttraincrash,theteaminvestigatethewreckageandanewmystery–theidentityoftheunidentifiedbody21.