Giant-Man continues his training in order to be fast enough to catch the Human Top. Meanwhile, the Top travels to the pier and uses dynamite to blow up an abandoned tug boat. While the police are busy investigating the explosion, the Top initiates phase 2 of his plan in the west end of the city.

Alerted of the explosion, Giant-Man devises that it is probably a diversion and is about to check out the west side of the city when the two heroes are interrupted by the untimely arrival of the Giant-Man and Wasp fan club. Giant-Man bombards the crowd with a giant shout so that he and the Wasp can leave to tackle the Human Top.
Later, Giant-Man spots the Human Top leaving the Federal Building, and attempts to stop his foe. During the battle the Top makes a fool of Giant-Man, eventually causing the hero to step into a manhole and injure his leg. In spite of the aid of the Wasp, the Top manages to make his escape.

Returning to his home, the Top reveals that he had stolen civil defense plans which he plans to sell to Communist agents. While at a meeting with top-level military officials, Giant-Man learns that the plans that the Top had stolen are already obsolete, but they decide to use the sale of the plans as bait to catch both the Communist spies operating in the country and capture the Top.

When the Top calls to make arrangements with the Communists, the heroes are listening via a wire tap and learn the meeting place where the exchange will take place. Giant-Man easily captures the Communist spies and then goes to the meeting place to confront the Top.
When the Top tries to escape Giant-Man he is shocked to find that the entire neighborhood has been fenced off by the military. With nowhere to go, the Top is easily knocked out by Giant-Man and is taken into custody.

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