Jack straightened his back up a little. Adventure was one thing, and even a bit of mystery could be fun, but this felt vaguely, well, uncomfortable. There was something missing, and something big, so what could it be?

The convoy approached and two of them men hopped off the side, guns levelled out as soon as they stepped off.

"The Doctor?" one of them demanded with a muffled voice. "We've been instructed to collect you. Come with us."