Marty Blank, a.k.a. the Gibbon, is transported to a world ruled by apes and devoid of humans. He and Dr. Fiona Fitzhugh must navigate this bizarre new reality where their roles are reversed. The primary conflict arises from their struggle to survive and potentially return home in a world where humans are considered primitive or non-existent, facing the dominance of ape society.

The premise of Marvel Apes sets up a potentially humorous and action-packed adventure, playing on the classic 'Planet of the Apes' concept with a Marvel Comics twist. The introduction of established characters like the Gibbon into such a scenario suggests a focus on character dynamics and fish-out-of-water scenarios. The narrative is likely to explore themes of societal structure, survival, and the nature of intelligence through the lens of a world where primate evolution has taken a different path. Readers can expect a blend of action, satire, and the unique characterizations familiar to Marvel readers.