The quantum mirror Daniel found in "There But for the Grace of God" brings to Area 51 an alternate Kawalsky and Dr. Carter from another reality, this time one where Sam never joined the military but became Jack's wife and the Goa'uld just overran earth. Dr. Carter begins suffering from temporal entropic cascade failure, a paradoxical effect of having two versions of the same person in the same reality and realises that she must return to her own reality or both Sams will eventually perish. SG-1 embark to the alternate reality to intercede and prevent the Goa'uld from conquering Earth before our General Hammond has the mirror disabled. The alternative Teal'c remained Apophis's loyal first prime, so the 'real' one can assume his identity to infiltrate the invading force but they are discovered and captured, but this only serves as the ideal diversion while the Sams also contact the alternate Asgard... Written by
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[Teal'c and his alternate meet in a parallel universe
Renounce Apophis as a false god and join us in our deliverance of this world and I will spare you.
[Teal'c shoots his alternate self
Written by Joel Goldsmith
and David Arnold See more