The Planet Gallifrey was under attack by both the Daleks and the Borg.

The Time Lords fled into the past abandoning their homes as their Planetary Colonies are doomed.

The Valeyard frowned as the Master helped him fly their TARDIS away from the Dalek Armada.

"Do you think the Time Agents managed to pull the Doctor's TARDIS into our Dimension yet?" The Valeyard asked working the TARDIS Controls.

"Captain Jack Harkness did his job alright, my past self already found the Alternate Doctor being questioned by the rest of the Time Lords inside the past and rescued him." The Master responds.

"At least something is going right, the Daleks just gave Paradox Machines to the Cybermen inside the past to distract our Starfleet Allies from helping us." The Valeyard answers annoyed.

"The Human Timelines are fracturing into several different versions, no doubt the Cybermen are Conquering Timelines one at a time to harvest resources from each one of them." The Master points out.

The Timeline where the Time War happened, the Timeline where the Time War has not happened yet and the Timeline where the Daleks are wiped out by the Borg before the Time War can happen all overlapped each other as the TARDIS Navigational Computer tried to make sense of where it was going.

The Timeline where the Cybermen Conquered Humanity before they Discovered Warp Engines for themselves.

Earth Year: 2056 AD

The Cyber-Warships began their invasion of the Vulcans, the Tellarites and the Andorians as the Valeyard's TARDIS appeared to investigate the new timeline created by the Cybermen Time Machines.

"We must destroy the Cybermen Paradox Machines to stop all these possible futures from happening all at once, we will use the indigenous species to remove the Cybermen Time Machines transporting the New Paradox Machines to create the new timelines or steal the Paradox Machines to transmit the blueprints to the rest of the Time Lords." The Master stated hopefully as the Valeyard nods in agreement with him.

Without the Starfleet Humans around the Romulans came to save the Vulcans from the Cybermen and the two Time Lords are soon caught in the middle of the conflict.

The Cybermen needed the Paradox Machines to keep the new timelines they create using time travel stable and all the Cybermen needed to do was pull their Paradox Machines back into the past to delete the timelines when there are nothing useful for them to keep it going. The problem was the Cybermen upgrading other species and transporting thousands of their own Cybermen into several alternate timelines under their control forcing the Human Time Agents into hiding when their Vortex Manipulators pulled them between the timelines.

This was why Captain Jack Harkness agreed to help the Valeyard pull the 9th Doctor across Dimensions to deal with the Cybermen Threat knowing that Captain Jack Harkness might be erased from history if their plans failed.