Sam manages to activate an Ancients' device they found at the Glastonbury site and she and Mitchell are shifted into a phase that makes them invisible to everyone. Daniel soon figures out just what is going on but Dr. Lee's proposed solution sends Daniel to the same plane as Sam and Mitchell. There he is able to translate information explaining that Merlin had created a weapon against the Ori - and provides a gate address where it can be found. Meanwhile, Teal'c travels to a Jaffa planet that has sent out a distress call. The two events are related. Written by
Did You Know?
Mitchell says he gets it. Last time it was an alternate reality. This time an alternate dimension. All he need is a time travel adventure and he will have scored the SG1 trifecta. After the series ends he gets his trifecta when he does Continuum. A Stargate SG1 movie about time travel. See more
Mitchell and Carter are sent into a parallel dimension where they cannot be seen or heard, and supposedly cannot interact with physical objects in their original dimension (as when Carter's hand passes through a coffee cup). Yet they are able to walk around on the same floor that everyone else uses, can hear words spoken by those in the original dimension (which would require the air to carry sound vibrations to their ears), and can see things in that dimension (requiring light to reflect off their retinas). They also are still able to breathe the air, and Mitchell travels through the Stargate as if he were still composed of matter that can interact with the gate. See more
Major General Hank Landry
You better be sure about this Doctor, because if you make me disappear there won't be a dimension safe enough for you.
Written by Joel Goldsmith
and David Arnold See more