HannahGGossett
This is past season 3 of The 100. Instead of 6 years it will be 8 years.
Only 8 remained, Clarke Griffin, Bellamy Blake, Octavia Blake, John Murphy, Monty Green, Harper McIntyre, Nathan Miller, and Raven Reyes.
Clarke didn't make it to the spaceship in time, so Bellamy stayed behind for Clarke, he also has nightblood. John, Monty, Harper and Raven went to space thinking Bellamy and Clarke is dead. Octavia and Nathan went to the bunker where Octavia is the commander.
The other characters that are alive is still in it, it will just manly be focused on the eight. This story is about what happened during those years, and after. There will be new enemies.