It's been years since they took out Pike. Bellamy had finally come to his senses and helped them. And now they're all grown up and they have their own families. Bellamy married Echo (much to everyone's surprise)
and they had two kids. Octavia and Lincoln got married and they had a daughter, same goes for Raven and Luna. As for Clarke and Lexa, they got married and they had a lot of kids, two sets of twins and a son and a daughter. Their first daughter Daenerys, the younger one of the first set of twins, is a very quiet girl, she doesn't like being around people and she spends a lot of time in her room, but there's more to it. This is her story.