Ezra Miller’s The Flash just made a shocking appearance in Crisis on Infinite Earths Part 4.
Here is the official synopsis for Crisis on Infinite Earths: Part 4:
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 (Stephen Amell), who reveals that he has become something else. Meanwhile, the origin stories for The Monitor (guest star LaMonica Garrett) and Anti-Monitor are revealed. Glen Winter directed the episode written by Marv Wolfman & Marc Guggenheim (#808).
Crisis on Infinite Earths: Part Four airs on January 14th at 8:00 p.m. on The CW.