Jyugo and the gang are killing time teasing the new guard, Seitarou.
One day, a new inmate is sent to Cell 13. Inmate Number 99, Tsukumo.
He looks and acts like a ninja! Uno, Niko, and Rock are excited to see the real thing.
But as a Japanese, Jyugo does not believe him. 
To convince Jyugo that he’s a true ninja, Tsukumo challenges Jyugo to see who can escape from prison...
Don't try so hard to look serious!
!لا تحاول التّظاهر بالجدّيّة
Die ernste Mine passt nicht zu dir!
No te hagas el rudo.
No te hagas el duro.
Joue pas aux durs !
Non sforzarti a fare il serio!
Não se esforce para parecer sério!
Не коси под сурового!