cKay is testing a puddle jumper that Zelenka repaired. Together with pilot Griffin he heads to the mainland of Atlantis when suddenly it malfunctions and crashes into the ocean. They awake an hour later to see them sink further and further into the ocean at an alarming rate. They are already 1200 feet beneath the surface and every minute the jumper goes down 20 feet. It's only a matter of time before the pressure will get too high. McKay tells Zelenka to hurry up, but he is not able to pinpoint his exact location.

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