Mae (Kingdom of the Planet of the Apes)

"I have a name: Mae. I know where they're taking your clan."

Mae revealing her intelligence to Noa and Raka.

Mae is a mysterious human and an ally of Noa and Raka in Kingdom of the Planet of the Apes played by Freya Allan.

In the decades following the Simian Flu Pandemic, the surviving humans of the outbreak and the Human-Ape War regressed to a primal state after the Simian Flu mutated. As a result, their descendants are unable to speak. But Mae was born with intelligence and the ability to speak like humans before the pandemic. To survive, she hid in plain sight, primarily by pretending to be primitive and living along with the devolved humans.

Where is Mae when she becomes naked and how does it happen?