T - The Flash (2014) - Season 6 Episode 1 - Into the Void

Team Flash face multiple Godspeeds, but focus on their personal issues: Barry and Iris are grieving over losing Nora, Caitlin is unable to summon Killer Frost, and Cisco deals with being Vibe no longer. However, they're forced to set aside their concerns when a black hole appears at seemingly random locations across Central City, threatening to destroy the metropolis.

Aired: 8 Oct 2019