Dalek Time Squad's saucer

During the Kotturuh crisis, the Dalek Time Squad travelled back to the Dark Times in a Dalek saucer after the Eighth Doctor connected its engines to those of his TARDIS. (AUDIO: The Enemy of My Enemy)

At the onset of the Battle of Mordeela, the saucer dropped out of warp in front of the Victis Fleet, alongside the Ninth Doctor in a Great Vampire coffin ship. (PROSE: The Knight, The Fool and The Dead) In the battle that followed, the Dalek ship tore apart the Victis Fleet, despite the Eighth Doctor's efforts to rein them in, but were forced back by Brian the Ood deploying a variety of ancient weapons. This enabled the Tenth Doctor's flagship, the last of the fleet remaining, to destroy Mordeela and flee. (PROSE: All Flesh is Grass)

As the Time Squad explored the Dark Times, the saucer served as their mobile capital. (PROSE: Mission to the Known) While exploring, the Daleks docked with an ancient ship and tried to absorb its Huon energy, failing until the Eighth Doctor indicated their error. (COMIC: Tales of the Dark Times)

Fearing that any remaining Kotturuh could judge the Daleks, the Dalek Time Commander ordered Dalek scout ships to wipe out the surviving Kotturuh. (PROSE: All Flesh is Grass) As the Dalek Prime Strategist began abducting Dark Time lifeforms to experiment on, (PROSE: Mission to the Known) the Commander and the Executioner received the pre-recorded instructions from the Emperor in the event of their failure to prevent the changing of history. The Emperor ordered them to take advantage of being in the Dark Times by destroying Gallifrey before the Time Lords existed. (PROSE: Mission to the Known) The Strategist was not privy to the orders, which the Commander and Executioner referred to as the "Ultimate End". The Strategist and Scientist Dalek continued their experiments, seeking to create a more biologically efficient form of Dalek known as the Dalek Symbiont.

The Time Squad eventually managed to capture a Great Vampire. The Tenth and Eighth Doctors and Brian discovered this after finding a coffin ship the Daleks had raided and infiltrated the Dalek saucer using a surviving Bloodsman named Gelsin. The Tenth Doctor and Gelsin observed the final creation of the Symbiont by the Strategist and Scientist who infused a Dalek with Vampire DNA; as such the resulting creature could not be killed due to the fact it was already "undead". The Eighth Doctor and Brian went to the bridge, with the Doctor claiming his alliance with the Daleks still stood. The Symbiont experiment caused a power drain, allowing the Doctors and Gelsin to escape whilst Brian stayed behind and causing a schism between the Time Commander and the Strategist. Brian meanwhile infiltrated the engine room, connecting an explosive to the engines which he wired to himself to prevent the Daleks killing him. He informed the Doctors that the saucer's destination was Gallifrey and was rescued by the Tenth Doctor before the Daleks could kill him.

Realising the Doctors would now attempt to defend Gallifrey, the Strategist ordered for the Drones to be given the Symbiont DNA, creating an army of undying hybrid Daleks. This newly created army was used to invade Gallifrey whilst the original Symbiont was sent to kill the last Kotturuh, Inyit, on Birinji. The three Doctors made a final stand against the Daleks over Gallifrey, assisted by Coffin Ships of the Free Undead, and eventually decided to crash their ship into the Dalek saucer in the hopes that the resulting paradox would destroy them. Before their final move was necessary, however, the new army was defeated by Inyit, who used the last of her powers to pass judgement on the entire hybrid Dalek race. As the Daleks panicked, fearing the judgement might spread to pure Dalek DNA, the Eighth Doctor boarded the Dalek saucer and used a remote detonator to trigger Brian's explosive in their engines, forcing the saucer into the Time Vortex and out of the the Dark Times. (PROSE: All Flesh is Grass)

Hurling out of the control in the Vortex, the saucer was further sabotaged by the Eighth Doctor, widening the divide between the Strategist and the Commander as they argued how to proceed. The Commander ordered the TARDIS brought to the bridge, hoping to force the Doctor to come to him, while giving the Executioner full reign to exterminate any aliens free on the ship. Eventually the Executioner went completely insane, opening fire on anything and causing further damage to the ship. The Doctor meanwhile had outwitted the Scientist and affixed an explosive on its casing, the detonation causing further damage to the ship. As the ship entered the final phase of its destruction, the Strategist attempted to bargain for a lift in the TARDIS before the Doctor revealed the treasonous discussion to the Commander, starting a fight between the Daleks. (AUDIO: Mutually Assured Destruction)

The Strategist survived the break-up of the saucer, observing the other Daleks being torn apart by the time winds. He used the Kotturuh crystals that he had stored in his casing to power an emergency temporal shift to escape the Time Vortex. (PROSE: Exit Strategy)

A single Drone survived the destruction of the Time Squad, ending up adrift in space. It sent a message warning about the Doctor and that history was under attack, which was picked up by the Emperor at the start of the crisis. (PROSE: The Last Message)