If its not one group of people trying to kill on the Ground, its another.
Things are not looking great forThe 100crew heading into season 4.
Where we left off:After entering the City of Light, Clarke defeated A.L.I.E.

Credit: Diyah Pera/The CW
and saved everyone from leading mindless, AI-controlled existences but she might not havetotallysaved the world.
Before the AI was destroyed, she told Clarke that humanity is soon going to end.
What we know about season 4:Not much.
And Octavia is probably going to have to deal with killing Pike in cold blood.
Comic-Con burning question:How are they going to save the world?