In Episode 157, panic spreads among the citizens as evacuation efforts stall and rumors of the heroes' defeat circulate. La Brava gains control over U.A.'s evacuation system and successfully moves several blocks, but discovers that one block is being forcibly held back from the inside by villains acting on All For One's orders. Heroes like Gunhead, Kendo, and Tetsutetsu work diligently to apprehend these intruders and resume the evacuation.

Meanwhile, the police pursue All For One, who continues advancing eastward, nearing the range necessary for his Mud Sludge manipulation. Tsukauchi receives the alarming news that Dabi is generating immense heat in Gunga. Analysts predict that Dabi will self-detonate in less than ten minutes, triggering a high-pressure explosion that will incinerate everything within a five-kilometer radius—including the critical evacuation route between U.A. and Shiketsu.

Endeavor confronts Dabi but realizes his own Quirk cannot prevent the impending explosion. All Might contacts Todoroki and Tenya Iida, urging them to head to Gunga immediately. Despite their injuries, they recognize they are the only ones who can stop Dabi's catastrophic plan. With the help of Tenya's incredible speed and Todoroki's dual Quirk, they race against time to reach Gunga.

On the battlefield, Endeavor attempts to launch Dabi into the sky to minimize the explosion's impact. Unexpectedly, Rei Todoroki, Dabi's mother, arrives in a U.A. robot, determined to cool her son with her ice Quirk. Natsuo and Fuyumi, Dabi's siblings, also join in, pleading with him to stop. Faced with his family's united efforts, Dabi momentarily regains clarity, recalling past memories and emotions.

Despite their intervention, the explosion still looms. Todoroki arrives just in time, propelled by Tenya's top speed. He unleashes his ultimate attack, "Great Glacial Aegir," to counter Dabi's overwhelming heat. The powerful ice attack freezes Dabi from the inside, halting the explosion. The family gathers around him, acknowledging the tragic circumstances but relieved the disaster has been averted.

Simultaneously, All Might prepares to face All For One alone, despite being Quirkless. He accepts that this battle has always been his responsibility.