It doesn't take long to get them both over; he doesn't have a weapon on him, Mjolnir's not exactly something you just carry around, but even without super strength, he's got a lot of experience with hand to hand. And it usually comes down to that, in the end.

His eyes scan the treeline, and he sees it too. Sees the flash of movement, hears the voice again, and -

"Shit. Tony?" The voice had been muddy before, pinging the back of his brain, but now it's suddenly clear: It's Tony, who'd disappeared from ADI months ago now. Who he hadn't been able to find, or save, not here, not back home -

He glances at Mercy, eyes wide, desperation in every line of his body. "Stay together. In visual range."

But then, of course, he takes off for the source of the movement and the sound, assuming she'll follow along.