Picking up from the ominous events of last season's Letters of Transit, the year is 2036 and the Observers rule is absolute. The Fringe team - preserved in amber for 20 years - is now a rebel resistance team fighting for freedom. Peter, reunited with his now adult daughter, Etta, sets out to find out what happened to his wife and Etta's mom - Olivia - as they begin their mission to save the world from the Observers.