The shinobi receive a mysterious message delivered by arrow from an unknown, and potentially deadly, assailiant who lurks in the shadows. The letter lures them to an empty spa resort, where they'll begin a trial like they've never faced before. But first, it's time for everyone to have a squirt gun fight in skimpy swimsuits!
I know! I know!
Ja, ich weiß schon!
¡Lo sé!
¡Lo sé!
Je sais ! Je sais bien !
Lo so! Lo so!
Já sei!
Знаю! Я знаю!