Floor 0508

Floor 0508, or more simply 508, was one of over a thousand decks on a Mondasian colony ship.

A group of Neomorph Cybermen, led by a Cyber-Leader and a Cyber-Lieutenant, were among the Cybermen created on Floor 1056 and went from there to Floor 0508. Under orders from a Cyber-Planner, they attempted to prime a group of Cybermats to attack Floor 0507, and to capture and  to interrogate them as to how and why the Cybermen's definition of humanity had been altered. The patrol's Cyber-Leader held the Master hostage after he killed the Cyber-Lieutenant, and ordered two Cybermen to pursue Missy and Alit after they escaped. The Cybermen killed Topknot before being destroyed by a powerful electric shock resulting from the Master firing his laser screwdriver at the steel ground of Floor 0508, after Missy had hacked the floor's weather system to force it to rain. (PROSE: Alit in Underland)