▁involving ▁John ▁Dog get t ▁finding ▁the ▁truth ▁behind ▁his ▁son ' s ▁murder . ▁The ▁episode ▁earned ▁a ▁N iel sen ▁rating ▁of ▁ 5 . 1 , ▁being ▁watched ▁by ▁ 5 . 3 8 ▁million ▁households , ▁and ▁ 7 . 8 ▁million ▁view ers ▁in ▁its ▁initial ▁broadcast . ▁The ▁episode ▁received ▁largely ▁positive ▁reviews ▁from ▁critics . ▁ ▁The ▁show ▁cent ers ▁on ▁F BI ▁special ▁agents ▁who ▁work ▁on ▁cases ▁linked ▁to ▁the ▁par an ormal , ▁called ▁X - Files ; ▁this ▁season ▁focus es ▁on ▁the ▁investig ations ▁of ▁John ▁Dog get t ▁( Ro bert ▁Patrick ), ▁Mon ica ▁Re yes ▁( An nab eth ▁G ish ), ▁and ▁D ana ▁S cul ly ▁( G ill ian ▁Anderson ). ▁In ▁this ▁episode , ▁Dog get t ▁st umb les ▁upon ▁a ▁case ▁that ▁may ▁hold ▁a ▁connection ▁to ▁the ▁murder ▁of ▁his ▁son . ▁With ▁the ▁help ▁of ▁an ▁F BI ▁cad et ▁named ▁Rud olph ▁Hay es ▁( J ared ▁Po e ), ▁Dog get t ▁acqu ires ▁information ▁to ▁help ▁his ▁current ▁case ▁as ▁well ▁as ▁establish ▁the ▁link ▁between ▁the ▁present , ▁his ▁Jane ▁Does , ▁and ▁the ▁past — his ▁son , ▁Luke . ▁The ▁link ▁is ▁a ▁man ▁named ▁Nicholas ▁Reg ali , ▁an ▁organized ▁crime ▁particip ant ▁who ▁has ▁an ▁association ▁with ▁Bob ▁Har vey , ▁the ▁only ▁suspect ▁in ▁Luke ' s ▁case . ▁Though ▁the ▁cad et , ▁Hay es , ▁is ▁not ▁who ▁he