Sam blinks at the sudden bout of laughter, watching curiously as Kirk became red in the face - were those tears? There's only been a few times he's seen Kirk laugh like this, and it came as a shock to see it now, considering how grim things were and being threatened not too long ago.

"Several doors," he says, sounding impressed. "Working on up it sounds." A pause as he looks up and frowns. "Or technically I suppose down." After all they were underground at this point. He makes sure to keep up, though stumbles from time to time since he isn't as familiar with these streets as Jim.