In a long corridor of an underground bunker, several prisoners are marching under armed guard. As they approach the door at the end of the corridor, one prisoner seizes his chance to assault a guard, but the door opens almost immediately and several German soldiers step through to mow down the entire group, save for one prisoner who remains standing. The guards grab him and force him through the door, where he is placed on an operating table and held down as a drip is inserted into his arm and blood pumped into his veins. He stops moving for a short time before his eyes blink open revealing his irises have become zombified-white.