10,9,8,7... Clarke, Bellamy, Wells, and Glass (who is about to escape right now) are all headed to Earth on a suicide mission.
Clarke, Bellamy, and Wells have just landed on Earth and are going to try and find out a way of how to all survive.
What is this place?
Octavia steals the pills from Clarke who needs it to give to her sick friend Thalia. Octavia happens to be a drug addict.
Where did the pills go?
The whole camp is destroyed by a mysterious fire, killing Clarke's only friend, Thalia.
Octavia has also mysteriously disappeared, and Clarke and Bellamy are looking for her.
OCTAVIA WHERE ARE YOU!!!
Clarke and Bellamy find Octavia's hair tie on the ground and connected all the dots of current event from the fire to Octavia being taken. The only possible reason for all of this is that there are other people on Earth besides them.