During the waning days of World War II, a squad of Russian soldiers pushes into eastern Germany. Stumbling upon a secret Nazi lab led by a descendant of Victor Frankenstein, they discover a grotesque plan far beyond the normal atrocities of war. The lab is filled with bizarre experiments and undead creations, engineered through a fusion of ancient alchemy and cutting-edge wartime science. Intent on using these monstrous soldiers to turn the tide of war, the descendant has created an army of flesh-welded, mechanical soldiers, piecing together the bodies of the dead and the machinery of war into undead monstrosities.

As the Russian squad navigates the horror-filled lab, they are forced to confront not just the terrifying creations but also the ethical implications of their enemy's work. Each step deeper into the facility reveals more of the mad scientist's ghastly experiments, challenging the soldiers' sanity and resolve. Faced with the ultimate perversion of science and nature, they must find a way to stop the descendant's plan before these monstrous creations can be unleashed upon the world, all while battling the horrors that lurk in the shadows of the lab and fighting to survive against an enemy that defies the laws of life and death.