All For One orchestrates the raid from both the inside and outside. Using Shigaraki Tomura's body—which he now partially controls—he launches an aerial assault with High-End Nomu .

, a new inmate introduced who strikes a deal with All For One to capture Izuku Midoriya in exchange for the Air Walk Quirk.

The core of the episode focuses on the fall of , a high-security prison located five kilometers offshore that is designed to hold individuals whose Quirks pose a severe threat.

A key tactical move involves a synchronized Quirk-based EMP blast from both Shigaraki (outside) and All For One's original body (inside), which disables the prison’s complex electronic surveillance and locking systems.

, who chooses to act independently rather than join All For One's army

In of My Hero Academia Season 6, titled "Tartarus," the series shifts from the brutal frontlines of the Paranormal Liberation War to a devastating strategic blow against hero society. This episode marks a critical turning point, transitioning the story into its final stage with a massive prison break that releases thousands of dangerous villains back into the world. The Assault on Tartarus

(Kai Chisaki), who is shown in a desperate state seeking "Pops"

As the security fails, several notorious villains from previous seasons are freed, including: Muscular (Goto Imasuji) Moonfish