This is an excellent episode that demonstrates, with flawless clarity, the biggest danger of running the Stargate Program, having a team go off-world only to bring something deadly back, in this case, alien impostors. Anyway the story seemed very plausible and flowed extremely well. Carter's character definitely got a chance to shine here, it was great to have just her against the forces of the SGC in a race against time to stop the incursion. Having Maybourne as a sort of accidental hero was great and set up episodes further along in the series in which he is also helpful. This episode is the first episode where we see that good ol' Harry really does have earth's interests first, despite being sleazy in the way he defends earth. An all-around action packed romp you will surely enjoy.
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