Season 2

Finding Monty gone from his cell, Clarke breaks out and discovers she is trapped in an underground complex inside Mount Weather. She discovers an entire population of humans has survived, but is unable to go outside because they have never built up the resistance to radiation that the grounders and the 100 have from space and adaptation. After meeting their leader, President Dante Wallace, she is invited to stay along with the 47 surviving teenagers out of the original 100 that landed on Earth. Distrusting him, she makes a break for freedom but is stopped by Jasper. Clarke secretly plots an escape. Meanwhile, grounders capture Finn and Bellamy, before Abby, Kane, and the rest of The Ark’s survivors find them and free them. After heading to the crash site, they discover an injured Raven and Murphy. Bellamy attacks Murphy, and Kane arrests him. The group returns to the newly established Camp Jaha, the remains of the crashed Ark. Separated from everyone else, Lincoln tries to save a poisoned Octavia, but with no antidote, he is forced to take her to his village, knowing it will mean certain death if he is caught.