His fingers close around Tom's throat, closing tight, then lifting the target up from the ground with all his unnatural strength and into the wall. There's a blaze of anticipation that roars into the Soldier's veins when the blade drops from the target's hand with the kill only seconds away, promising to be followed by the satisfaction of Mission Complete.

Bucky draws back his metal arm, the fingers curled tight into a fist for a punch that, if unleashed, will prove devastating for Black Tom. His arm is strong enough to break concrete, let alone a human skull. Before he can do so a voice calls out to him with enough command coupled with familiarity to make the Winter Soldier hesitate.

He doesn't drop Tom, or let the blow fly, he means to stay perfectly still and keep the target immobilised as he turns predatory and questioning eyes to the God. The intervention might have gone well -- had Thor not tried to pull Tom away from him a moment later rather than explain himself first.

The Winter Soldier has a target and he doesn't stop until that target is dead, no matter what obstacles are in his way. Thor reaches and the Asset reacts, poorly, by throwing Tom forcefully to the ground behind him and turning to face the God head on. "This is my mission."