In a post-apocalyptic future, an astronaut named Brent embarks on a desperate mission to find the missing Taylor, an old travel companion lost in a world dominated by intelligent apes. Upon landing on this planet, Brent encounters the same social hierarchy that Taylor had uncovered, where apes rule over humans. However, what Brent does not expect is to come across a group of humans who have survived in the depths of the Earth, a mutant society that worships a forgotten nuclear bomb.
The plot intensifies when Brent is captured by the apes and brought before the powerful leader, Dr. Zaius, who is determined to protect the secret of the destruction that looms over the world. At the same time, Brent forms a connection with Nova, a wild human woman who accompanies Taylor. Together, they embark on a struggle for freedom and truth, as new moral and ethical dilemmas arise regarding the nature of humanity and survival.
In an unexpected twist, internal conflicts between the apes and humans are unleashed, leading to a tragic conclusion that endangers the existence of both species. Tension permeates the narrative, where the fate of Brent, Taylor, and the human race hangs by a thread, and where the horror of what has been lost and the possibility of redemption collide in an epic battle.