In a world fueled by one's conviction, one man falls from the sky. He claims to come from beyond the wall, though the world as we know it only exists inside.
It's where the land ends.
The World Wall protects our world.
.عنده تنتهي الأرض
.سور العالم الذي يحمي عالمنا
Aquí termina la tierra.
El muro protege nuestro mundo.
Si trova dove finisce la terra. Il Muro del Mondo 
protegge il nostro mondo, per l'appunto.
É onde termina a terra.
A Muralha Mundial protege nosso mundo.