▁the ▁template ▁for ▁the ▁fifth ▁season . ▁It ▁featured ▁guest ▁appearances ▁by ▁actress ▁Georg ina ▁Ha ig ▁and ▁Lost ▁veter an ▁Henry ▁Ian ▁C us ick . ▁ ▁The ▁episode ▁first ▁a ired ▁on ▁April ▁ 2 0 , ▁ 2 0 1 2 ▁in ▁the ▁United ▁States , ▁and ▁was ▁watched ▁by ▁an ▁estimated ▁ 3 . 0 3 ▁million ▁view ers . ▁Television ▁critics ▁pra ised ▁the ▁risk iness ▁of ▁the ▁episode ▁prem ise ▁and ▁the ▁actors ' ▁performances ▁while ▁also ▁express ing ▁doubt ▁about ▁its ▁place ▁during ▁the ▁season . ▁The ▁episode ▁was ▁nominated ▁for ▁the ▁ 2 0 1 3 ▁Hugo ▁Award ▁for ▁Best ▁D ram atic ▁Pres entation ▁( Short ▁Form ). ▁ ▁Plot ▁The ▁episode ▁begins ▁with ▁on - screen ▁text ▁describing ▁how , ▁in ▁ 2 0 1 5 , ▁the ▁Ob ser vers , ▁no ▁longer ▁content ▁with ▁obser ving ▁history , ▁took ▁over ▁human ▁society . ▁They ▁killed ▁many ▁in ▁an ▁event ▁called ▁" The ▁Pur ge ", ▁and ▁transformed ▁the ▁remaining ▁into ▁a ▁total itar ian ▁culture ; ▁though ▁members ▁of ▁the ▁Fr inge ▁division ▁attempted ▁to ▁fight ▁the ▁take over , ▁they ▁were ▁easily ▁defeated , ▁and ▁the ▁remaining ▁Fr inge ▁division ▁were ▁allowed ▁to ▁remain ▁to ▁police ▁the ▁human ▁" N atives ". ▁The ▁Ob ser vers ▁are ▁a ided ▁by ▁the ▁ability ▁to ▁read ▁most ▁human ▁minds , ▁able ▁to ▁sense ▁mot ives ▁before ▁they ▁can ▁be ▁acted ▁on . ▁ ▁In ▁ 2 0 3 6 , ▁F BI