There's a pause, the knife against the Doctor's neck. He can see Kurt's face now, dark blue with pointed ears, yellow eyes a stark contrast against it. Kurt stops at his question...unable to answer it. His mind is too muddled to find the answer. No, he had to obey, he had to bring the Doctor with him.
Kurt puts both hands to grip the Doctor's arm and they teleport away...
There's a moment of black nothing around them with the sensation of movement. For someone who has never teleported before, it's extremely disorienting. They reappear near another building, Kurt teleporting them again inside a small cell. There is bars on the door and outside Stryker and his men are trying to open this blue box...with absolutely no success.
Kurt lets him go and sits in the corner, nervous and unsteady...he'll probably have to get another shot soon to keep him in line.