An army of alien spaceships attack Earth and threaten to destroy the human race, but a handful of survivors band together to stop the invasion.
A scientist teams with a mysterious French agent to try to stop a massive, radioactive lizard from destroying Manhattan.
Greg Sanders is accused of framing a man for murder seven years ago. Meanwhile, the CSIs investigate the death of an unidentified man whose body is found during torrential rains in Las Vegas.
An expert translates hieroglyphs on an ancient ring, which turn out to be a map to a portal to another world. The Army sends two men to pass through the stargate and report back what is on the other side.
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