
The story begins immediately where “Turn Left” ended. The TARDIS materializes on Earth and the Doctor (David Tennant) and Donna (Catherine Tate) are expecting disaster. But instead, all is perfectly calm; indeed, it’s a Saturday. Regardless, the Doctor remains unnerved by Donna’s meeting Rose, which indicates to him that if she can travel from one parallel world to another, then the walls of the universe are breaking down. (If only he’d seen her earlier in the season!) They head back to the TARDIS and no sooner do the doors close then strange things begin happening on the Earth. The TARDIS interior shakes and the Doctor runs to the door, swings it open and before you can say Han Solo, the planet’s gone. The TARDIS hovers in the empty space where the Earth once was.
To read the rest of the recap for the penultimate episode of Season Four, click here to visit The House Next Door.