After arriving on a new planet, our heroes found a place where they hoped to try again. Clarke and Bellamy led a group down to this mysterious world to start anew, but not everything on Sanctum was as perfect as it seemed. Despite their determination to do better, threats both seen and unseen once again forced them to fight for their lives and the future of humanity.
41 minutes
Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.
42 minutes
Echo and Gabriel learn more about Hope and her mysterious past.
42 minutes
Raven faces an unexpected threat. Clarke must keep the peace among opposing factions in Sanctum.
42 minutes
Mysterious outsiders arrive with news of Clarke's missing people.
42 minutes
Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.
42 minutes
Clarke and her friends find themselves on a planet that is not what it seems.
41 minutes
Emori tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza struggle with new ones.
41 minutes
Clarke confronts a new adversary. A surprising connection takes us back to the past and to the nuclear apocalypse that destroyed the Earth.
41 minutes
Murphy and Indra must defuse a tense situation. Old friends make new allegiances.
42 minutes
Sheidheda makes his move. A Disciple goes rogue.
42 minutes
Where in the universe is Bellamy Blake?
42 minutes
It's a new day in Sanctum. Clarke, Octavia, Raven and Echo struggle with a new foe.
41 minutes
The red sun derails Clarke's plans.
42 minutes
Clarke and her friends reckon with all that has happened only to find an unexpected threat looming.
42 minutes
Clarke and Octavia mount a desperate rescue mission as the Disciples close in on what they want.
43 minutes
After all the fighting and loss, Clarke and her friends have reached the final battle. But is humanity worthy of something greater?