Through his own carelessness, Goemon is taken prisoner at a hot spring, and subjected to torture by the assassin team of Rose and Wolf. They want to kill Lupin, because it will prove that they are the best of the best. To that end, they are attempting to make Goemon tell them Lupin's weakness. The torture gets intense, but will Goemon crack?
This episode is notable for being particularly disturbing as it features an unusual amount of scenes showcasing explicitly graphic torture, something relatively uncommon for for the usually lighthearted nature of the show.