When did The Challenge Season 37 Episode 19 air?
The Challenge Season 37 Episode 19 aired on December 15, 2021.


Legends will fall. A new champion will rise.
Each Challenge pits numerous cast members from past seasons of reality shows against each other, dividing them into two separate teams according to different criteria, such as gender, which show they first appeared on, whether or not they're veterans or rookies on the show, etc. The two teams compete in numerous missions in order to win prizes and advance in the overall game.

The remaining Challengers fight for their share of the $1,000,000 prize. A close relationship faces a devastating test. Agents are crowned winners of “Spies, Lies, and Allies” but are then faced with a daunting decision.
Direct answers for episode-level questions and details.
The Challenge Season 37 Episode 19 aired on December 15, 2021.
This episode runs for approximately 65 minutes.
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