100 years in the future, when the Earth has been abandoned due to radioactivity, the last surviving humans live on an ark orbiting the planet — but the ark won’t last forever. So the repressive regime picks 100 expendable juvenile delinquents to send down to Earth to see if the planet is still habitable.
16 episodes in this season
E1
41m
Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.
E2
42m
Echo and Gabriel learn more about Hope and her mysterious past.
E3
42m
Raven faces an unexpected threat. Clarke must keep the peace among opposing factions in Sanctum.
E4
42m
Mysterious outsiders arrive with news of Clarke's missing people.
E5
42m
Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.
E7
41m
Emori tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza struggle with new ones.
E8
41m
Clarke confronts a new adversary. A surprising connection takes us back to the past and to the nuclear apocalypse that destroyed the Earth.
E10
42m
Sheidheda makes his move. A Disciple goes rogue.
E12
42m
It's a new day in Sanctum. Clarke, Octavia, Raven and Echo struggle with a new foe.
E13
41m
The red sun derails Clarke's plans.
E14
42m
Clarke and her friends reckon with all that has happened only to find an unexpected threat looming.
E15
42m
Clarke and Octavia mount a desperate rescue mission as the Disciples close in on what they want.
E16
43m
After all the fighting and loss, Clarke and her friends have reached the final battle. But is humanity worthy of something greater?
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