• Air date: 20 May '20 16 episodes
      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.
  • List of Episodes (16)
    • 1. From the Ashes

      19 May '20
      Clarke and her friends attempt to rebuild Sanctum as a new threat rises in the woods.
    • 2. The Garden

      26 May '20
      Echo and Gabriel learn more about Hope and her mysterious past.
    • 3. False Gods

      02 Jun '20
      Raven faces an unexpected threat. Clarke must keep the peace among opposing factions in Sanctum.
    • 4. Hesperides

      10 Jun '20
      Mysterious outsiders arrive with news of Clarke's missing people.
    • 5. Welcome to Bardo

      16 Jun '20
      Octavia gets to know a whole new world. Meanwhile, Murphy and Emori play make believe.
    • 6. Nakara

      23 Jun '20
      Clarke and her friends find themselves on a planet that is not what it seems.
    • 7. The Queen's Gambit

      29 Jun '20
      Emori tries to heal Sanctum's old familial wounds while Echo, Octavia and Diyoza struggle with new ones.
    • 8. Anaconda

      08 Jul '20
      Clarke confronts a new adversary. A surprising connection takes us back to the past and to the nuclear apocalypse that destroyed the Earth.
    • 9. The Flock

      15 Jul '20
      Murphy and Indra must defuse a tense situation. Old friends make new allegiances.
    • 10. A Little Sacrifice

      05 Aug '20
      Sheidheda makes his move. A Disciple goes rogue.
    • 11. Etherea

      12 Aug '20
      Where in the universe is Bellamy Blake?
    • 12. The Stranger

      19 Aug '20
      It's a new day in Sanctum. Clarke, Octavia, Raven and Echo struggle with a new foe.
    • 13. Blood Giant

      09 Sep '20
      The red sun derails Clarke's plans.
    • 14. A Sort of Homecoming

      16 Sep '20
      Clarke and her friends reckon with all that has happened only to find an unexpected threat looming.
    • 15. The Dying of the Light

      23 Sep '20
      Clarke and Octavia mount a desperate rescue mission as the Disciples close in on what they want.
    • 16. The Last War

      30 Sep '20
      After all the fighting and loss, Clarke and her friends have reached the final battle. But is humanity worthy of something greater?