Ninety-seven years ago, nuclear Armageddon decimated planet Earth, destroying civilization. The only survivors were the 400 inhabitants of 12 international space stations that were in orbit at the time. Three generations have been born in space, the survivors now number 4,000, and resources are running out on their dying "Ark" - the 12 stations now linked together and repurposed to keep the survivors alive. Draconian measures including capital punishment and population control are the order of the day, as the leaders of the Ark take ruthless steps to ensure their future, including secretly exiling a group of 100 juvenile prisoners to the Earth's surface to test whether it's habitable.
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The Flock 07x09
Murphy and Indra must defuse a tense situation. Meanwhile, old friends make new allegiances.
Clarke confronts a new adversary. A surprising connection takes us back to the past and the nuclear apocalypse that destroyed the Earth.
The Queen's Gambit 07x07
Emori tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza struggle with new ones.
Clarke and her friends find themselves on a planet that is not what it seems.
Welcome to Bardo 07x05
Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.
Mysterious outsiders arrive with news of Clarke's missing people.
False Gods 07x03
As Raven faces an unexpected threat, Clarke must keep the peace among opposing factions in Sanctum.
The Garden 07x02
Echo and Gabriel learn more about Hope and her mysterious past.
From the Ashes 07x01
Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.
The Blood of Sanctum 06x13
Sanctum becomes a battleground between the devout and the non-believers. The mystery of the anomaly deepens.
Adjustment Protocol 06x12
A special Naming Day changes everything in Sanctum. Gabriel comes face to face with an old friend.