Tripping the Rift

Roswell (2x8)

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As Chode and his crew try to outrun a couple of brickering Grey Alien scam artists, a mid-space collision sends both ships plummeting to the Earth - to the town of Roswell circa 1947. The only way our gang can get off this planet is to replace Bob's damaged fuel rods with ones from the alien's disabled ship - but the alien ship is under lock and key in a highly-secured military hangar.