In this episode, the team engages their desperate final plan to defeat the Observers as Olivia embarks on a dangerous mission through the alternate universe into the heart of enemy territory to recover Michael from Windmark's scientists.
This episode's glyphs spell:
Observers are featured in this episode.
Windmark's interest in the Statue of Liberty snow globe in 'The Boy Must Live' foreshadows the return to Liberty Island in 'Liberty'.
Signage on the dock in 'Liberty' shows an image of a man putting a finger to his lips (to say 'quiet'), foreshadowing Michael giving the same gesture to Olivia in 'An Enemy of Fate' when she asked him what they have to do next and when she killed Windmark.
In "Liberty" Fauxlivia and Lincoln were married and had a family. (Image 1)