Attack on the Duergar Warcamp

"Attack on the Duergar Warcamp" is the fourth episode of the first season of Critical Role.

Synopsis
Vox Machina form a tentative alliance with an Illithid outcast named Clarota, deep inside the caverns under Kraghammer. They learn of the creature’s people and their subjugation to a mysterious being known only as K'Varn, as well as the haggard mind flayer’s expulsion from the hive. Now cut off from the Elderbrain, Clarota burns with hatred for this K'varn, and wishes to free the Illithid race from the usurping entity. In order to do so, Vox Machina must proceed further into the deep, and reach the center of Clarota’s hive. But in order for the heroes of Emon to reach the Illithid city in the belly of Khaloor, they must get past the first flayer they encountered, as well as its small army of Duergar.

The heroes devise a plan, and fly themselves down to the center of the enemey’s war camp, to chance a risky assassination attempt on a creature that could easily break their will with a glance.