Dr. Karol Noymann, a nuclear scientist, dies in a lab explosion, only to be resurrected by invisible extraterrestrial beings who invade Earth, utilizing his body as a mouthpiece. These aliens plan to conquer the planet by reanimating the dead to carry out their sinister agenda. Dr. Adam Penner, a colleague of Noymann, is approached by the resurrected scientist with a grave warning about the alien invasion. Skeptical at first, Penner eventually believes and tries to alert the authorities about the impending danger.

As the invaders begin their assault, Dr. Penner teams up with his daughter Phyllis, her love interest Dr. John Lamont, and Major Bruce Jay to devise a strategy to fight back. Facing the dual threat of invisible aliens and their undead army, the team scrambles to find a way to expose the invisible enemy and push back the invasion. They utilize their scientific expertise and military might in a desperate battle for survival, driven by the hope of uncovering a weakness in their otherworldly foes and saving humanity from obliteration.