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"Episode 20, Enemy at the Gate, will mark our 100th episode and, contrary to online speculation, we will not be ending things with a cliffhanger. Regardless of whether we got the pick-up or not, we had always planned a clean conclusion to our 100th episode, one that would hopefully leave fans satisfied yet eager for more. And that “more” will come in the form of the Stargate Atlantis movie…" — Joseph Mallozzi in his personal blog after the announcement that this season is the last for the show, August 21, 2008.