Back in the harness room, Jennifer punches into a computer and then straps into her harness. In the yogurt room, the tub fills with white liquid and little red stringy bits. A face appears in the goo, at first featureless and then becoming a copy of Jennifer. She sits up with a gasp. "Well, I can see why you keep it in a church," the Doctor says. "The miracle of life." The Doctor tries again to warn them about the coming storm but everyone's pretty blasé. They get their power from a "solar router" in the weather vane, which is problematic because, well, it's a solar storm. Also, the set must have been freezing cold because you can see everybody's breath. He takes Cleaves aside for a private confab about the dangers of the storm, but it includes some finger shaking for emphasis, which works on Cleaves about as well as it works on me. Which is not at all.
The Doctor and companions head for the factory's monitoring station to check on the storm just as the sky bursts into flame. The building shakes. The computers in the monitoring room spark and smoke. The Doctor warns them about an impending big-ass power surge, summing it up with: "Kaboom!" He dashes for the door, crying, "I've got to get to that cockerel before all hell breaks loose!" Then, delighted with himself, he pauses. "I never thought I'd have to say that again!" He shakes himself out of his cockerel-related reverie, reminds Amy to breathe, then continues his mad dash for the weather vane.
When he gets outside, the sky is streaked with amber light. Lightning flashes. Inside the control room, the harnesses crackle and pop. Acid pipes inside and out begin to spring leaks. The TARDIS, now sitting in a pool of acid, begins to sink into the ground. The Doctor climbs a ladder toward the weather vane and pops open a fuse box just as lighting strikes again. The flash of light momentarily illuminates the yogurt complexion of the gangers. The Doctor flips a switch, but a bolt of lightning knocks him to the ground. Inside, the yogurt vat is blasted with bolts of electricity. The room goes dark. Anyone who's heard of Dr. Frankenstein in any incarnation knows where this is about to lead.