S4·E9 The Traitor
Core
Aired September 10, 2017
Synopsis
An unexpected guest brings old conflicts to the surface, dividing the heroes and threatening the group's trust; with questionable new intelligence in hand, the group launches a make-or-break final assault on the Master.
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Frequently Asked Questions
When did Season 4 Episode 9 of The Strain air?
Season 4, Episode 9 ('The Traitor') originally aired on September 10, 2017.
How long is Season 4 Episode 9 ('The Traitor')?
The episode follows the standard broadcast runtime for The Strain.
What happens in The Strain Season 4 Episode 9?
An unexpected guest brings old conflicts to the surface, dividing the heroes and threatening the group's trust; with questionable new intelligence in hand, the group launches a make-or-break final assault on the Master....