The Master holds his arms above his head, twirling, as the diamond activates in the Gate or whatever; the beat begins, four by four by four. The Doctor runs screaming into the Vinvocci chamber. Rassilon calls upon the Panopticon for a vote: "We die here, today, or return to the waking world and complete the Ultimate Sanction. For this is the hour when either Gallifrey falls, or Gallifrey rises!"
Gallifrey rises. Wilf wonders aloud: Weren't the Time Lords dead? Well, the Doctor explains about the Timelock, how he sealed them in a bubble forever. How they reached through time to drive the child Master mad, through the beating signal. "If they can follow the signal, they can escape before they die." Wilf offers to throw a party, and the Doctor shakes his head: "There will be no party." He admits to romanticizing the Time Lords, remembering the best of them, but admits that endless war has changed them forever. "You've seen my enemies, Wilf. The Time Lords are more dangerous than any of my enemies."
The cactus woman acts annoying, which causes the Doctor to act annoying, and then there is a very, very long space fight sequence where he gets their ship up and running again and they head back toward the Naismith compound, shooting down all of Earth's missiles as they come flying, and Wilf gets to take up arms of his own and go generally Star Wars with a joystick gun, and he has a great deal of exciting fun, and the Master is frothing and there's a moment where you think the Doctor's going to crash the Vinvocci ship right into the mansion -- which Wilf is pretty much okay with but just wants to know if he's about to die, and it's darling -- but at the last second the Doctor pulls his shit together and instead jumps out of the ship, gun in hand, and drops through the ceiling of the Gate room.
Meanwhile, the two Time Ladies who were against the return of Gallifrey (and didn't get blown up by Rassilon earlier) are the women standing on the platform with Rassilon and his two advisors, covering their eyes: "They will stand as monument to their shame, like the Weeping Angels of old." It's an immensely powerful image, as the vanguard of five prepares to reenter the universe on Earth.
While Wilf fights with the cacti to return and help the Doctor, which they eventually do, Rassilon greets the Master, and the Doctor where he lies on the floor of the Gate room, surrounded in shattered glass.