Juvenile prisoners from a space-station society are exiled to Earth decades after the planet was destroyed by nuclear war in this sci-fi series. In the first season, an antibiotic is sought to treat Jasper (Devon Bostick), and Bellamy (Bob Morley) struggles to maintain order. Later, Raven (Lindsey Morgan) notices a connection between Finn (Thomas McDonell) and Clarke (Eliza Taylor), while Kane (Henry Ian Cusick) wrestles with guilt over a difficult decision. Marie Avgeropoulos, Paige Turco, Isaiah Washington and Eli Goree also star in Season 1.