'There is no right or wrong. That ending will evolve as you need it to,' EP Martin Gero tells ET about the series' final scene.
The NBC action drama wraps up its five-season run on Thursday, July 23 with the 100th episode.
The Aussie actor talks to ET about Thursday's episode and how it's been being back home after five seasons on the NBC crime thriller.
ET exclusively debuts a first look from Friday's episode.
ET exclusively debuts a first look from an all-new episode, airing Friday, April 19 at 8 p.m. ET/PT on NBC.
ET exclusively debuts a first look from Friday's episode, featuring the return of a former series regular.
An all-new episode, featuring the return of former series regular Ukweli Roach, airs Friday, March 22 at 8 p.m. ET/PT on NBC.
ET exclusively debuts a heartbreaking first look from Friday's episode.
ET exclusively debuts a first look from Friday's episode, airing 8 p.m. ET/PT on NBC.
ET exclusively debuts a first look from a brand new episode, airing Friday, Nov. 9 at 8 p.m. ET/PT on NBC.
ET exclusively debuts a first look from Friday's season closer.
The season three finale for the veteran action drama airs Friday, May 18 at 8 p.m. ET/PT on NBC.