Complete story — includes the ending
Raven and Abby discover that because they were released from A.L.I.E.'s control via EMP instead of when Clarke pulled the kill switch, that they have leftover knowledge from the AI in their brains. They learn that Becca was making Nightblood on the Ark and after they find a rocket, they prepare to go back to the Ark to make Nightblood for the survival of the human race. Ilian brings Octavia to Arkadia to sneak his way in. Octavia warns them of Roan's planned takeover of the ship and Clarke goes to negotiate with him. They eventually agree to share Arkadia 50–50 until Ilian blows up the ship and they all watch their last chance of survival burn to the ground.
Sources and content license
Source and revision history · Adapted from Wikipedia contributors, List of The 100 episodes. HTML formatting and reference markers removed. · Content license