The fourth episode of the third season of Boku no Hero Academia (Episode 42 overall), titled is a landmark episode in the series that originally aired on April 28, 2018 . It focuses on the intense confrontation between Izuku Midoriya and the villain Muscular during the Vanguard Action Squad's invasion of the U.A. summer training camp. Plot Summary
The episode picks up with the launching a coordinated attack on the students in the forest. While Aizawa and the Pussycats attempt to organize a defense, Midoriya realizes that Kota is missing and likely at his secret hideout, which is vulnerable to the attack. Boku no Hero Academia (Season 3) Episode 4 Review Boku no Hero Academia 3rd Season Episode 4