est est 20th episode season american science fiction drama television series fringe 63rd episode overall narrative follows activation device parallel universe subsequent devastating consequences experienced world wrote episode directed guest star returned mysterious actor executive producer referred est start epic trilogy following episodes linked continuous story arc episode received generally positive reviews critics noted purpose meant set stage season finale plot parallel universe able use blood sample child create half dna uses activate machine prime universe results series unusual events including formation vortex long land rural new_york state including herd sheep fringe division learns version machine activated walter suspects machines tied quantum version machine destroying world stabilize parallel unknown prime universe experiment affected stability world prime universe helps set massive dynamic resources track occurrences preparing deploy limited supplies amber substance contain needed advises olivia find man trusted instructed listen sam disappeared found walter peter massive dynamic staff debate disable machine peter realizes option walter comes recognize observer efforts earlier prepare lose peter preparing peter goes touch machine sent flying electrical spark wounding knocking unconscious hospital chapel walter tries find god actions olivia arrives hearing news steps outside observe sunset runs demands taken machine stop happening parallel universe machine detected fringe division team investigate tells stand asks recent mission prime universe recovered admits machine activated having sacrificed son peter allow son live distressed actions later returns obtain devices allow cross prime universe caught use locks away seeing traitor cause production est written executive producers executive story editor filmmaker directed season finale scheduled hour long executive producer confirmed episodes linked continuous story arc reflection fellow executive producer intent episodes season like turning page chapter novel usually good novel pages chapter forward new understanding subject matter deeper wait turn page media outlets referred episodes season finale conference journalists actor called est episodes season epic trilogy elaborated year heading fact inevitable conflict gotten know people sides bring conclusion starting episode start deal issue earth starts deteriorate events start happen indicate world gear okay problem going away affecting machine believe assist resolution problem episode basically deals lead trilogy leading use machine interview noble called episode title critical series stating time frame plays episodes important remember finale time frame march exclusively confirmed previous guest actor returning twentieth episodes season appeared season twelfth episode concentrate ask role est following week episode sam marked sixth seventh appearances fringe respectively fringe episodes fox released science lesson plan collaboration grade school children focusing science seen est intention having students learn weather ironically sunny post conditions depicted occurring time episode title eastern standard time occur new_york state daylight saving time rules contemporary united_states days period autumn ends new_york returns sun risen state true day standard time spring long_island point new_york sunrise final day est better title episode reception ratings initial broadcast united_states episode watched estimated million viewers ratings share aged seen percent fewer viewers previous week series airing night viewers ratings share resulted series low fringe reviews graded episode explaining want review season finale aired enjoying fringe season wrapping cross cutting sense imminent doom murray continued especially liked midst end times rush periodically check characters short scenes strengthening sense relationships mean fringe gotten good past year half wouldn predicted season writing los_angeles_times critic noted fringe preparing finale calling est movement episode opportunity place big climax vein similar television series lost enjoyed hand explaining surprised universe crossing device failing happened peter touching machine ign rated episode writing week episode wasn edge seat masterpiece scores high marks character development putting pieces place great season finale like loved outcome peter machine calling nice plot twist praised appreciated elements series writing critic acknowledged episode tough act follow previous week episode stated pretty good happy peter taking active role machine plotline disliked episode religious elements believing walter scene church felt forced concluded review noting episode felt like chess game pieces arranged board big coming decide wins loses
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