S5·E16 Checkmate
Core
Aired March 15, 2017
Synopsis
Oliver gets closer to the truth about Prometheus. Meanwhile, Helix refuses to continue helping Felicity until she does a favor for them.
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Frequently Asked Questions
When did Season 5 Episode 16 of Arrow air?
Season 5, Episode 16 ('Checkmate') originally aired on March 15, 2017.
How long is Season 5 Episode 16 ('Checkmate')?
The episode follows the standard broadcast runtime for Arrow.
What happens in Arrow Season 5 Episode 16?
Oliver gets closer to the truth about Prometheus. Meanwhile, Helix refuses to continue helping Felicity until she does a favor for them....