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!
Just don't kill me!
Töte mich bitte nicht!
¡No me maten!
¡No me matéis!
Ne me tuez pas !
N-Non uccidetemi!
Só não me mate!
Только не убивайте меня!