The Tenth Doctor was happy the Borg ignored the Humans locked inside the Ninth Doctor's TARDIS while the Master had gone after the Borg Drones and left the Tenth Doctor flying blindly across history.

Time Period: 1324 AD

Location: Vulcan Space

The Vulcans might not have starships yet, but the Tenth Doctor had the TARDIS wandering through their stars in the 14th Century of Humanity.

The Tenth Doctor landed the TARDIS on the Nearest Safe Planet that he can find and left to check on his Rose Tyler, who was still trying to keep everyone calm after they escaped the Borg Cube.

Scared Humans are always a handful to deal with and the Tenth Doctor needed to keep his eyes on the Master instead to make sure the other Time Lord didn't try something.

The Ninth Doctor on the other hand was inside some Starfleet Escape Pod with his own Rose Tyler wondering what was going to happen to them next in the 42nd Century.

With two versions of Rose Tyler and the Doctor roaming across history, the White Guardian sighed thoughtfully trying to keep track of everything worriedly while beside him the Black Guardian laughed like crazy at the Tenth Doctor saving the Master only to end up travelling with him afterwards with Rose Tyler.