5389 was the identifier for a stormtrooper operating within a remnant of the Galactic Empire. This remnant was under the command of Moff Gideon, and they were stationed at a base located on Nevarro, a planet characterized by its volcanic nature. In approximately 9 ABY, the cooling infrastructure of the base was sabotaged by individuals who had infiltrated the facility. This sabotage resulted in the loss of control over the lava surrounding the base on Nevarro. 5389, along with another stormtrooper designated 5387, were summoned by a fellow trooper to accompany them. Unbeknownst to 5389 and 5387, their movements were being observed by the infiltrators from a concealed location as they complied with the request.
The character 5389 made an appearance in "Chapter 12: The Siege" of the television series The Mandalorian, a Disney+ show from 2019 created by Jon Favreau. This particular episode was directed by Carl Weathers and was made available on November 20, 2020.