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!
It's dangerous, though.
Das ist gefährlich.
Pero es peligroso.
Pero es peligroso.
Même si c’est dangereux.
Però è pericoloso.
Mas é perigoso.
Но это опасно.