With the newest revision to Supergirl's 5th season and the announcement that Melissa Benoist is pregnant, Supergirl might not return to The CW until 2021.

Title: Crisis on Infinite Earths: Part 4

Directed By: Glen Winter

Air Date: January 14th, 2020

Written By: Marv Wolfman & Marc Guggenheim

Official Description: OLIVER HAS BECOME SOMETHING ELSE IN PART FOUR OF "CRISIS ON INFINITE EARTHS." EPISODE PENNED BY MARV WOLFMAN & MARC GUGGENHEIM -- Stuck in the Vanishing Point, the Paragons search for a way to escape. The futility of the situation is compounded by The Flash's (guest star Grant Gustin) disappearance. However, hope appears in the form of Oliver, who reveals that he has become something else. Meanwhile, the origin stories for The Monitor (guest star LaMonica Garrett) and Anti-Monitor are revealed.

Reoccurring Cast: 

Guest Stars: LaMonica Garrett (The Monitor), Grant Gustin (The Flash)

Special Notes: