The episode description for the upcoming Fringe episode “Brave New World, Part 1” has been released.

Fox has released the following press statement:

–“FRINGE” – (9:00-10:00 PM ET/PT) CC-HDTV 720p-Dolby Digital 5.1

PA: Viewer discretion is advised.

WALTER REVISITS HIS PAINFUL PAST ON AN ALL-NEW “FRINGE” FRIDAY, MAY 4, ON FOX

A mysterious Fringe event causing people to spontaneously combust forces Walter to revisit his painful past while the Fringe team faces off against David Robert Jones to save the world, or worlds, in the all-new “Brave New World, Part 1 of 2” episode of FRINGE airing Friday, May 4 (9:00-10:00 PM ET/PT) on FOX. (FR-421) (TV-14 D, L, 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; Seth Gabel as Lincoln Lee

Guest Cast: Jared Harris as David Robert Jones; Rebecca Mader as Jessica Holt

The episode will star May 4, and we’re very excited to finally see Lost‘s Rebecca Mader guest star!