Once Upon a Time… Space
Season 1, Episode 18: Atlantis
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All Episodes - Season 1
Episode 1
The Planet Omega
Episode 2
The Saurians
Episode 3
The Green Planet
Episode 4
Towards Andromeda
Episode 5
The Cro-Magnons
Episode 6
The Revolt of the Robots
Episode 7
The Planet Mytho
Episode 8
The Long Voyage
Episode 9
In Cassiopea
Episode 10
A Planet Blown to Pieces
Episode 11
Shipwrecked in Space
Episode 12
The Giants
Episode 13
The Incas
Episode 14
In the Land of the Dinosaurs
Episode 15
The Rings of Saturn
Episode 16
The Unstoppable Menace
Episode 17
Earth
Episode 18
Atlantis
Episode 19
The Strange Return to Omega
Episode 20
The Revenge of the Robots
Episode 21
The Humanoids
Episode 22
An Hostile World
Episode 23
City in Flight
Episode 24
The Great Computer
Episode 25
The Battle of the Titans
Episode 26
The Infinity of Space