The Invaders
Season 1, Episode 9: Quantity: Unknown
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While investigating the theft of a mysterious cylinder from the site of a plane crash, Vincent is captured and suspected of being an alien.
All Episodes - Season 1
Episode 1
Beachhead
Episode 2
The Experiment
Episode 3
The Mutation
Episode 4
The Leeches
Episode 5
Genesis
Episode 6
Vikor
Episode 7
Nightmare
Episode 8
Doomsday Minus One
Episode 9
Quantity: Unknown
Episode 10
The Innocent
Episode 11
The Ivy Curtain
Episode 12
The Betrayed
Episode 13
Storm
Episode 14
Panic
Episode 15
Moonshot
Episode 16
Wall of Crystal
Episode 17
The Condemned