Lion heart

This story takes place after season 1 episode 9 "unity day" right at the end. The TV. Series is called the 100 and it's a story when 100 teenagers are sent to the ground to see if it's survivable. The arc (their old home in space) is running out of oxygen and need a plan B. When they arrive on the ground they find out that earth is in fact survivable but the native population (called grounders) are more ruthless than they couldn't anticipated. Clarke Griffin ,a 17 year old girl who grew up in the arc and her mother was part of the counsel, and Bellamy Blake, a 23 year old ex-guard who got a "ticket" (after shooting the chancellor)to earth to be with his 16/17 year old sister Octavia who was never supposed to exist due to the 1 child per family rule are trying there best to lead a group of children on planet earth until the people of the arc can return and help them.