Walking down the lively city street, everything suddenly gets quiet as a group of five superheroes, each with unique powers and cool costumes, forms a circle. They all give each other serious looks, like they're getting ready for something important. Then, 'Unstoppable,' a really powerful hero who seems invincible, lands with a loud thud, making ripples in the air. He walks with big steps and looks really serious, like something important is about to happen. People watching can feel something big is coming, and they're stuck in the middle of it.