The clandestine movement fighting the Klingon occupation of the Mat'aar system, led in secret by the apparent collaborator Nevette, whose identity Una Chin-Riley assumes in Strange New Worlds.
The resistance appears in the fourth-season Strange New Worlds episode A Case of Chiaroscuro. Una, M'Benga and Uhura slip into the Klingon-held Mat'aar system to recover a lost Starfleet probe and are forced to hide on Mat'aar XII, a world where colour cannot be perceived.
Una closely resembles Nevette, a prominent local who passes as a collaborator while directing the resistance network, and who has been murdered by Roman, a member planning to betray it. Taking her place, Una deals with the Klingon commander Kor, whose men interrogate Uhura with a mind scanner.
Learning that the Klingons mean to strengthen the defence grid so that nobody can leave, Una carries out Nevette's plan against M'Benga's advice. An electromagnetic pulse brings down the grid and cripples a D7 cruiser, letting some Mat'aarans flee, and Roman is left to take the blame.