Babylon 5
Season 3, Episode 7: Exogenesis
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Marcus starts snooping around Downbelow when some of his contacts start behaving unusually and a lurker is found dead with a strange creature bonded to his spine. Ivanova investigates Corwin's loyalties when he receives a promotion.
All Episodes - Season 3
Episode 1
Matters of Honor
Episode 2
Convictions
Episode 3
A Day in the Strife
Episode 4
Passing Through Gethsemane
Episode 5
Voices of Authority
Episode 6
Dust to Dust
Episode 7
Exogenesis
Episode 8
Messages from Earth
Episode 9
Point of No Return
Episode 10
Severed Dreams
Episode 11
Ceremonies of Light and Dark
Episode 12
Sic Transit Vir
Episode 13
A Late Delivery from Avalon
Episode 14
Ship of Tears
Episode 15
Interludes and Examinations
Episode 16
War Without End (1)
Episode 17
War Without End (2)
Episode 18
Walkabout
Episode 19
Grey 17 Is Missing
Episode 20
And the Rock Cried Out, No Hiding Place
Episode 21
Shadow Dancing
Episode 22
Z'ha'dum