An enraged Dabi confronts Hawks after Twice's death, meanwhile at the Hospital Endeavor, Eraser head, Crust, Present Mic and X-less finally arrive to help Mirko, who's risking her life to stop Shigaraki's awakening.

The pro heroes' defensive net was broken through. Facing the monstrous giant are the U.A. hero course students. Class A and Class B work together to start a big operation to block Gigantomachia.

After failing to steal Star's Quirk, New Order, and losing many other Quirks, Shigaraki and All For One prepare for their next move. Who is the traitor at U.A.?!