Jack extends his hand in response to that. "Captain Jack Harkness. Consider one met."

Then he laughs, albeit bitterly, because he used to the be the sort who excelled at solving these kinds of mysteries. All sorts of things came out of the Rift back in Cardiff, and he's been in more than a few strange situations with the Doctor. They fixed the miracle, but he can't get himself off a damned ship to nowhere?

If only he could figure out how to get his Vortex Manipulator working again, but it's fried. Again, and the Doctor was dead set on keeping him in one place. He failed to see what was so dangerous about him hoping around time, other than running the risk of giving the Time Lord a case of the heebie-jeebies by showing up somewhere he was unannounced and bothering him with his wrongness.