Racnoss Wars
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The Racnoss Wars were a conflict between the Time Lord's Fledgling Empires and the Racnoss. (AUDIO: Empire of the Racnoss)
The Racnoss attacked a Fledgling Empire outpost on Trakkiney during the wars. (PROSE: The Labyrinthine Web)
The Fifth Doctor's TARDIS was brought into the conflict after a conscientious objector circuit was activated. (AUDIO: Empire of the Racnoss)
Almost all of the Racnoss were wiped out in the conflict, apart from one Webstar which escaped to the site where Earth would be formed. (TV: The Runaway Bride)