Boruto dozes off on Thunder Train and wakes up in an unfamiliar location along with the other passengers. A mysterious individual known as Ouga forces them to participate in a game of death disguised as an experiment—who will successfully beat this game and make it out alive?!
This is my secret underground maze
that no one knows about.
.هذه متاهتي التّحأرضيّة السّرّيّة التي لا يعرف عنها أحد
Es mi laberinto subterráneo.
Nadie más lo conoce.
Es mi laberinto subterráneo.
Nadie más lo conoce.
Questo è il mio labirinto sotterraneo 
che nessuno conosce!
Este é meu labirinto subterrâneo secreto!
И выстроил я его здесь
втайне ото всех!