: The finale's climax involves a major identity swap—Fauxlivia successfully replaces the original Olivia, who is left trapped in the "other" side. This twist shifted the show from a procedural "monster of the week" format into a more dedicated, serialized sci-fi drama for future seasons. Critical Consensus
Fringe season 2 episode 22: season finale review - Den of Geek Fringe - Season 2Eps23
: Excellent character development, high production value for the alternate world, and a compelling cliffhanger. : The finale's climax involves a major identity