 Keiko is teaching the station s children about the wormhole. Suddenly Vedek Winn, one of the most important religious leaders of the Bajorans and a possible candidate to become the next Kai, arrives. She despises the scientific way Keiko chooses to explain the phenomenon and calls it blasphemy. She will not allow it and takes the Bajoran children of the school. Both Keiko and Winn are not willing to give in and Sisko travels to Bajor to get the support of Vedek Bareil. Meanwhile chief O Brien finds an interlock is missing from his toolkit. Together with a new engineer, Neela from Bajor, he starts looking for it. They find it back in a corridor together with the remains of ensign Aquino. It looks like an accident, but O Brien has his doubts.