The Flash
Tuesdays 8:00 PM on The CW
Watch The Flash Season 5 Episode 21 online via TV Fanatic with over 4 options to watch the The Flash S5E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, and Netflix.
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Episode Details
On The Flash Season 5 Episode 21, the team is on high alert after Cicada II threatens to unleash a dangerous virus that would put all meta-humans at risk.
- Show:
- The Flash
- Season:
- The Flash Season 5
- Episode Number:
- 21
