"Milton Keynes? That's a bit undramatic, isn't it?" the Doctor chided. "Still, you're very right. Shouldn't affect me, Gallifreyan biology circumvents the radiation, but for those survivors, assuming they're humanoid..."

Which was a big assumption. For all the Doctor knew, they could be pirates. And, really, if he were a betting man (which he was, but only on occasion) he'd bet on some sort of an attack. Maybe even piracy.

But they could be survivors. That meant there was really no choice. He nodded to Jack, then bolted towards one of the main access doors.

Opening door 55.