FRiNGE SEASON 04 (2011–2012)
From Wikipedia, the free encyclopedia Main article: Fringe (season 4) Season 4 begins in an alternate timeline, one in which Peter did not survive his childhood illness in either universe, according to the Observers. Walter still crossed over and brought back the parallel universe Peter, but this Peter drowned on their return; Olivia and her sister were raised by Nina Sharp, though with ulterior motives. Though major events in their past have still occurred to the main characters in this timeline, the exact means by which they occurred has changed without Peter's influence, a result of the butterfly effect; Walter was released from the mental institution by Olivia, but without any point of stability, has become reclusive and unwilling to leave his lab. The Observers note traces of Peter still appearing in this timeline and set out to eradicate them. Despite this, through Olivia and Walter's actions, Peter reappears in this timeline, though still carrying mem...