13. Praimfaya

Complete story — includes the ending

As the death wave hits Polis and the Second Dawn bunker, Clarke, Bellamy, Raven, Murphy, Emori, Monty, Harper and Echo gather at the lab to ready the rocket to travel to the remains of the Ark. Monty is incapacitated after going out with Murphy to obtain an oxygen generator for installation in the Ark from the lighthouse bunker. With only 25 minutes before the death wave hits, Clarke uses a satellite tower to power up the Ark remotely, but complications force her to miss the rocket launch. Clarke ultimately succeeds and runs back to the lab with the death wave right behind her, but upon arriving she is revealed to have been affected by the radiation. On the Ark, the group almost runs out of air before the oxygen generator is installed. The death wave destroys the Earth, scorching most of the planet bare. Six years and seven days later, Clarke is revealed to have survived the death wave due to her Nightblood along with a young Nightblood girl, Madi. While Clarke tries to make contact with the Ark, a spacecraft lands on Earth in the only fertile valley left. The sign on the side of the ship identifies it as a prison transport, alarming Clarke.