We start with a fight with Executioner in another dimension.
After last arc, Hulk was believed to be dead. Rick Jones is tortured by keeping Hulk’s identity as Bruce Banner secret, especially now that he believes he is dead. Major Talbot plays amateur psychiatrist to encourage Rick to disclose the secret.
They’re in the cave nearby where Hulk was snatched away by Executioner, and when Hulk’s battle is done, returns to that same place. But the army was ready for him, and they trap him.
By the time Hulk returns, Rick has already ratted him out to Talbot and now he’s revealing the secret to Betty Ross, Bruce Banner’s true love.
And, captured, Hulk brings all three characters together–and seems to drive Betty into Talbot’s arms.
Of course Hulk escapes, and as he flees, there’s a random fight against Hercules.
And we end with Hulk sad in a cave, alone, which is where all Hulk stories end. The big impact of these issues, of course, is that the Army and Betty now know he’s Banner.
He also stays Hulk for this entire story, never transforming back.
Note: Kirby (layouts only) and Romita are the artists for #77. Thereafter, Bill Everett takes over–and he is not well-suited for this character.