ThebodyofelderlyrecluseSeamusDevlinisdiscovereddeadinafieldandtheinitialchargeistoRuairi,atroubledteenager,whoisstayingataremoteyouthfacility.Jackisforcedtokeepwatchonhimashegathersevidenceonthedeath.Meanwhile,along-lostcousinBrianandhisgirlfriendGemmaopensupnewwoundsforJack'smotherandthediscoveryofanuncleJackneverknewexisted-avictimofthenowderelictandviolentindustrialschoolforyoungoffenders.