While web-slinging across the rooftops of Manhattan, the Amazing Spider-Man discovers a man stumbling in the streets below. To the wall-crawler's surprise...it's the Vision! What's wrong with the synthezoid avenger? The web-slinger discovers that an electromagnetic signal from the Baxter Building is interfering with the Vision's brain waves! So the two heroes travel to the FF's headquarters, and they indeed find the signal, but look out...it's monstrous!