Being half drugged at least means that Bucky isn't about to flip out again, if only because his brain can't get enough adrenaline. But he does still glare around at everybody and anybody as he stands beside Steve, as if he could possibly be an effective bodyguard, and as if Steve isn't now bigger than he is.

"What the hell kind of dream is this?"

It's a quiet mutter as Bucky takes a half step out onto the rainbow bridge, quickly followed by Bruce in case Bucky is still unsteady and needs to be saved from falling over the edge.

Heimdall, golden eyes kind, look down on the three remaining people in his observatory and gestures to where the others are already a fair distance away.

"Go, you will come to no harm, and it is best not to fall behind."