Stardate not given: Having expected a Cardassian defector, Odo is surprised to find Weyoun at the meeting point. After the previous Weyoun 5 had died, this Weyoun 6 was activated but exhibited too much of a conscience of his own. When Weyoun 6 was about to be replaced by still another clone, Weyoun 7, he decided to defect and reveal secrets of the Dominion to the Federation to end the killing. When their runabout is chased by Jem'Hadar who were not told that a Founder is aboard, Weyoun 6 sees no other solution than to commit suicide to prevent Odo from being killed, but not before revealing that a deadly disease is spreading among the Founders. Meanwhile on DS9, Nog shows O'Brien how to acquire spare parts and navigate the "Great Material Continuum".

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