第 24 集: 御坂美琴運用鐵砂能力與分身展開激戰，力阻城市大規模爆炸。
2020年9月18日 播出
Mikoto uses her ability to create her giant out of iron sand, using its properties to fire off a powerful electrical that can cut through Doppelgänger's body. Doppelgänger responds by forcing Mikoto to shoot down fuel tanks to protect civilians, exposing the airship in the process. As Ryouko tries to reason with Doppelgänger to let her find a way to eliminate her soul, she attempts to jump to her death but is saved by the Scavengers. Learning from Misaki and Rita that Doppelgänger's ability is a form of artificial muscle, which Doppelgänger intends to use to set off a citywide explosion, Mikoto confronts her aboard the airship with Rita's assistance. (Source: Wikipedia)