Synopsis of the episode, courtesy of NBC, follows. Be forewarned, there are spoilers in the description.
In "The Fringe," press notes state, "Derek (Jack Davenport) and Karen (Katharine McPhee) find themselves at a surprising crossroads, forcing one of them to make a difficult choice. Jerry’s (guest star Michael Cristofer) uneasy partnership with Eileen (Anjelica Huston) hits a snag, as does Hit List’s first performance at the Fringe Festival. Meanwhile, Ivy’s (Megan Hilty) last-ditch effort to save her and Terry’s (guest star Sean Hayes) show has unexpected results." Debra Messing, Christian Borle, Jeremy Jordan, Andy Mientus and Krysta Rodriguez also star. Sean Hayes, Jesse L. Martin, Daniel Sunjata and Nikki Blonsky guest star.
As previously reported, the March 5 episode, which is entitled "The Read-Through," is described as such: "Julia's (Debra Messing) fears increase when Tom (Christian Borle) airs his suspicions of Peter (guest star Daniel Sunjata). Jimmy (Jeremy Jordan) and Kyle (Andy Mientus) confront their own crisis of confidence as “Hit List” is read for the first time. Meanwhile, Ivy (Megan Hilty) realizes her triumph might not be all she hoped when she meets her new co-star, Terry Falls (guest star Sean Hayes), and Karen (Katharine McPhee) wonders if she can trust Jimmy." Anjelica Huston, Jack Davenport and Krysta Rodriguez also star. Sean Hayes, Daniel Sunjata and Nikki Blonsky guest star.
The earlier episodes of the season introduced a slew of characters as well as a new tone created by new series "showrunner" and executive producer Joshua Safran.