Why does Johnny Cade act differently when saving the children from fire?

Johnny's change in temperament when rescuing children from a building on fire is attributable to the extreme situation and his innate capacity to act heroically under intense pressure. Typically portrayed as shy, timid, and vulnerable in S. E. Hinton's novel "The Outsiders," Johnny becomes a courageous rescuer in the face of danger. This transformation exemplifies his hidden potential and his dedication to those he cares about, particularly Ponyboy and the other children.