Stargate SG-1
S05E17 Fail Safe
Earth faces a dire new threat that surpasses even the Goa'uld when the team discovers that an asteroid is headed straight for the planet.
Season 5 Episodes
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Enemies (2)
Threshold (3)
Ascension
The Fifth Man
Red Sky
Rite of Passage
Beast of Burden
The Tomb
Between Two Fires
2001
Desperate Measures
Wormhole X-Treme!
Proving Ground
48 Hours
Summit (1)
Last Stand (2)
Fail Safe
The Warrior
Menace
The Sentinel
Meridian
Revelations