caged in roxtus, kiina and berix are clashing over the cavern. eventually, the two realize they were both seeking to hide from the outside world in there and agree to share the place. meanwhile, mata nui reaches roxtus, and challenges tuma in a duel for his friends' freedom. they both battle fiercely, but tuma gains the upperhand. suddenly mata nui remembers ackar's training and finds a wound in tuma's back, which had been caused by a baterra a few weeks earlier. using it against him, he slips under the skrall leader's guard, and strikes 3 times, which causes tuma to faint, who was unable to bare the pain of his reopened wound.