WATCH: A special trailer for Season Five of FRINGE

FRINGE: Walter (John Noble, L), Peter (Josh Jackson, second from L), Olivia (Anna Torv, C), Etta (guest star Georgina Haig, second from R) and Astrid (Jasika Nicole, R) search the Harvard campus for a hidden tunnel in the "In Absentia" episode of FRINGE airing Friday, Oct. 5 (9:00-10:00 PM) on FOX 50.

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By FOX50.com

Story Created: Oct 3, 2012 at 2:20 PM EDT

Story Updated: Oct 3, 2012 at 2:34 PM EDT

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The fifth and final season continues when the Fringe team revisits the Harvard lab, now under Observer control, to try to find the information they need as the team fights on in their mission to save the world in the all-new “In Absentia” episode of FRINGE airing Friday, Oct. 5 (9:00-10:00 PM) on FOX 50. (FR-502) (TV-14 V)

Cast: Anna Torv as Olivia Dunham; Joshua Jackson as Peter Bishop; John Noble as Walter Bishop; Lance Reddick as Phillip Broyles; Blair Brown as Nina Sharp; Jasika Nicole as Astrid Farnsworth

Guest Cast: Georgina Haig as Henrietta/Etta