"At the Mercy of-- Maximus the Mad!"
The Hulk's battle against Namor has washed Bruce Banner up on the shores of the island nation of Costa Salvador, where weird doings are afoot. Banner finds the natives under a state of brain-control, the cause being a colossal statue that emits a beacon.
Banner nearly succumbs to the signal himself, before changing to the Hulk, and bringing the fight to mastermind of the plan; Inhuman, Maximus the Mad.
Maximus has run this pilot program, with the support of his group of outlaw Inhumans. His plan is to slowly take over the Americas, then press Black Bolt for control of the Inhuman nation.
Another fly in the ointment is the US military, who sense trouble in Costa Salvador, and send in forces. As the Hulk has fought the Inhumans to a standstill, the Army approaches, and Maximus asks Hulk, "Are you with me or against me?". 20 pages.
Reprinted in Marvel Super-Heroes (1967) #72