Watch The Blacklist Online: Season 9 Episode 21Paul Dailly at .
Who betrayed the Task Force?
The Blacklist Season 9 Episode 21 finally lifted the lid on who had been conspiring against the team.
As Red finally learned the truth about who was messing with him for years, he came to a sudden realization about his future.
Elsewhere, a new villain threatened to derail the plan to secure the future of the world.
How did it all play out?
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Paul Dailly is the Associate Editor for TV Fanatic. Follow him on Twitter.