"The cable's snapped!" says Ida. They dive together out of the capsule, hitting face on ancient dust as the cable lands inside the capsule. Rose breathes the dust of separation: "Doctor! We lost the cable! Doctor, are you all right?" Best ask Jackie. Zach lets Rose know -- as if the symbolism wasn't enough -- that comms are down. "Doctor? Doctor, can you hear me?" Zach reads life signs, songs of life, but the capsule is gone. The Doctor is gone: "There's no way out. They're stuck down there."
The Doctor and Ida stand and brush themselves off, as one does when the cord finally goes. When the Devil finally cuts it. "How much air have we got?" Fifty-five minutes. And this recap is long, but not that long.