Max's mom goes missing exploring the jungle, and when Max and his allies go looking for her they find a society of talking apes ruling over savage humans.
Tropes:
- Combat by Champion: Max ensures equality for the humans by defeating the ape emperor's general (by forcing him through a portal).
- Been There, Shaped History: Norman gets a throwaway line implying he was Samson.
- Whole-Plot Reference: Pretty obviously "apes" the Planet of the Apes series.