TV stations are broadcasting the Harpy flying over Manhattan carrying the unconsciouss Hulk! (She defeated him in the previous issue, TIH2-168).
Watching the news, Thunderbolt Ross recognizes the flying monster-woman as his daughter Betty Ross!
So the former head of Project Greenskin reaches the big apple in time to talk to her. And though the Harpy recognizes her father, she flies away holding to her pray.
Combat jets are sent after the winged green monster to bring her down. After destroying one of them with her Hellbolt blasts, the Harpy, and her suitcase the Hulk, are trapped by an artificially created tornado which brings them on top of dark clouds high above NYC.
When the mist clears up, an advanced city manifests to them! As the Hulk wakes up, a large orange-skin bicephalous android monster shows up, the Bi-Beast!
Harpy and Hulk attack him, but the Bi-Beast knocks her out, and Hulk turns into Bruce Banner. Fortunately for the scientist, the android needed Banner's skills to fix some machines. And while he is put to work at once, the villain locks the Harpy in a prison cell.
Sometime later, Banner convinces the Bi-Beast to release the Harpy. He lets her go heavily sedated. Banner secretly uses a gamma ray device to siphon the radiation out of Betty in an attempt to cure her, but he seemingly fails, as she remains the Harpy...
Meanwhile, MODOK has traced Banner's and Betty's gamma signatures to the cloud city, and warns the Bi-Beast about the dangers of letting Banner to work by himself. The two-headed monster grabs Banner who turns into the Hulk and fights back!
As the two powerhouses trade blows, MODOK decides to take over the city. Out numbered, and mortally wounded, the Bi-Beast switches the city's auto destruction mechanism off.
As MODOK and his A.I.M. troups flee, the Harpy turns into her human self, Betty Ross! But the ground cracks under Banner and Betty, and they both fall to their doom!