The Timeline where the 3rd Doctor and the 10th Doctor are working together against the Cybermen.

"The Planetary Temporal Shift Systems are Recharging themselves...TARDIS Navigational Computers are completely useless...we are jumping blind or falling deeper into that Black Hole." The 10th Doctor pointed out.

"Not much of a choice, I vote for the Blind Time Jump over dealing with the Black Hole out there." The Master answers while the 3rd Doctor agreed with him.

"Unless any of these Humans want to wait for their planet to fall into the Black Hole, trust the Time Lords to do what needs doing and stay out of our way!" The 10th Doctor proclaimed and all the Humans in the room looked uneasy at each other.

"The Planetary Temporal Shift pulled us into the 14th Century Earth Era, Location: Andromeda Galaxy." The 3rd Doctor reported frowning to himself.

"Scanning for any Dalek Patrols within the area...nothing on the Planetary Sensor Scans." The Master remarked next.

"This must be before the Time Lords went to war with the Daleks because the Planet Gallifrey is trying to contact us." The 10th Doctor says in surprise.

"All TARDIS Transports return to the Planet Gallifrey at once! The Temporal Distortions are Disrupting Gallifreyan Navigational Computers, all Time Lords must return home immediately!" The Gallifreyan High Council orders unaware what was going on.

The Paradox Echoing Effects Restored the Planet Gallifrey from the past, something that the Cybermen didn't expect to happen as they invaded the Milky Way Galaxies to harvest new resources for themselves and waited for the Daleks to give their Cyber-Leader new orders.

The 10th Doctor looked bewildered feeling the minds of the Time Lords reappearing so long after the Time War ended and the 3rd Doctor was watching his disturbed reactions unsure if he wanted to know what was causing his future self so much remembered pain that he can feel it across the room.

The Master frowned beside the 3rd Doctor as the 10th Doctor cleared his mind checking their TARDIS Computer Connection to the Planetary Computer Systems of the Bad Wolf Colony.

The TARDIS Navigation Systems are disoriented by the several Identical Timelines Crisscrossing themselves from repeated Cybermen Time Corridors opening gateways between different time periods merging the Time Vortex Tunnels together.

The Time Lords Lost Time Vortex Travel because the Paradox Maze confused their TARDIS Navigational Computers with Location Duplication Errors that made Time Travel unreliable at best for them.

The Dalek Navigational Computers would have the same Location Duplication Errors once they discovered that they are living inside the Paradox Maze created by the Cybermen and the Time Lords are just as helpless as the Daleks.