S5·E9 What We Leave Behind
Aired December 7, 2016
Synopsis
After Prometheus attacks Curtis, Oliver realizes Prometheus knows all of Team Arrow's secret identities and is planning to come for them one by one. Felicity and Detective Malone discover a clue that links Prometheus to Oliver's past.
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Frequently Asked Questions
When did Season 5 Episode 9 of Arrow air?
Season 5, Episode 9 ('What We Leave Behind') originally aired on December 7, 2016.
How long is Season 5 Episode 9 ('What We Leave Behind')?
The episode follows the standard broadcast runtime for Arrow.
What happens in Arrow Season 5 Episode 9?
After Prometheus attacks Curtis, Oliver realizes Prometheus knows all of Team Arrow's secret identities and is planning to come for them one by one. Felicity and Detective Malone discover a clue that links Prometheus to Oliver's past....