My Hero Academia Season 4 follows the students of U.A. High as they face their toughest challenges yet. The season focuses on the Internship Arc, where Deku trains under Sir Nighteye, and the explosive Shie Hassaikai Arc, featuring the terrifying villain Overhaul. As the young heroes confront the dark underworld of quirks, they must push their abilities to the limit in brutal battles that will test their resolve and heroism.