[s4e22] Episode #4.22 -

: This episode features Chen and Bradford going undercover, a major turning point for fans of their relationship. Streaming and viewing options are listed on Fandango at Home.

: The penultimate episode of Season 4 focuses on the emotional battle to save Thea and the team’s struggle against Damien Darhk's dystopian vision. Detailed recaps are available via Den of Geek . Other Notable Episodes [S4E22] Episode #4.22

: A classic episode often discussed in the ER subreddit for its medical tension and character development. : This episode features Chen and Bradford going

Here are some of the most notable and frequently discussed episodes matching that tag: Detailed recaps are available via Den of Geek

: This iconic and gruesome two-part finale (concluding in S4E26, but starting here) follows a serial killer on a farm in Canada. You can check the cast list on Rotten Tomatoes .

: This finale is known for its ambitious (if polarizing) world-building. Critics at Den of Geek describe it as a mix of "brilliant" and "rubbish," focusing on William Bell’s return and Olivia’s destiny.