The TARDIS materializes on board a still and eerie spaceship. When a squad of soldiers land, they realize they've found themselves in the middle of a war zone.
When the TARDIS lands in a house in Florence, Italy in 1514, it isn't long before the guards of Guiliano de Medici arrest Steven and Vicki. To rescue them, the Doctor has to employ the help of the house's owner - one Niccolo Machiavelli.
The TARDIS arrives on a moon-sized asteroid orbiting two gas giants. With an amazing view, it's a chance for the Doctor, Steven and Sara to unwind after their recent adventures.