The Gurren Brigade is back on their way with their new members Rossiu, Gimmy and Darry.  They soon wonder into a fog and are led by an old man to a hot spring.  They are treated to food and baths where they remember the previous few days and all that's happened to them.  When Kamina and Simon learn that the girls have gone missing, they begin to realize that not everything is as it seems at the hot spring.