Mifune has increased the training for the junior high and high school students.  To sweeten the deal, he has offered both groups a valuable prize, and it’s going to be big.
Run, single file, as fast 
as you can down this path.
A partir de ahora, corran en 
una fila con todas sus fuerzas.
Ahora correréis todos en fila con todas vuestras ganas.
Corram em fila por esse caminho
 o mais rápido possível.