Truman the tortoise lives with his Sarah, high above the taxis and the trash trucks and the number eleven bus, which travels south. He never worries about the world below...until one day, when Sarah straps on a big backpack and does something Truman has never seen before. She boards the bus! Truman waits for her to return. He waits. And waits. And waits. And when he can wait no longer, he knows what he must do. Even if it seems...impossible!