When the electricity-wielding Electro threatens to destroy New York City's power supply, only the combined forces of Spider-Man and Captain America can stop him. Flying in from Avengers Mansion, Captain America finds Spider-Man locked in battle with the electrically-charged villain. Joining forces, Cap and Spidey waste no time in showing Electro just what it means to be a hero! Absorbing Electro's powerful blasts, Captain America's shield becomes charged with power. Thrown with pinpoint accuracy, Cap's shield impacts the force field surrounding Electro's energy siphoning machine and nullifies it, leaving Spider-man free to ground Electro for good!