4 Major Things to Remember Before The 100's Season 4 Premiere

In the season three finale, Ontari, who took command of the Coalition and subsequently surrendered to A.L.I.E.'s brainwashing, is killed by Jaha to keep Clarke from compromising A.L.I.E.'s control. So once again, the 12 Grounder clans are without a heda to lead them. And if the season four trailer is any indication of the madness that will ensue this year, they're going to need a very strong one. As if we all didn't miss Lexa enough already.