Complete story — includes the ending
With the help of a reluctant Ryker, Echo and Gaia foment a rebellion against the Primes, leading to a man assassinating Simone. In response, Russell prepares to burn everyone at the stake, but is convinced that Abby can help him create new Nightbloods through bone marrow transplants in order to resurrect all of the Primes. With Madi falling further under the Dark Commander's influence, Raven plots to erase his mind for good with the help of Gaia. As Clarke's body continues to deteriorate, she and Josephine are forced to work together in order to survive. After reuniting with Gabriel and Octavia, they are rescued from Sanctum guards by Bellamy who sends a threat back with Jade that Russell will never see Josephine again if he harms their people. Gabriel removes Josephine's mind drive, but her consciousness is able to hang on inside of Clarke's body and attempts to kill Clarke. With Bellamy urging her to fight, Clarke kills Josephine in their shared mindspace, destroying her consciousness for good and Clarke is reunited with Bellamy and Octavia.
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