Watch The Blacklist Season 4 Episode 21 online via TV Fanatic with over 7 options to watch the The Blacklist S4E21 full episode. Affiliates with free and paid streaming include Amazon, iTunes, Vudu, YouTube Purchase, Google Play, NBC, and Verizon On Demand.
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Facing a crippling siege on his criminal organization, Red tracks a high-end thief enlisted by Mr. Kaplan for a mysterious assignment. Meanwhile, Aram faces a difficult choice.