Possible end of season 3 cliffhanger

Natalie strikes out alone to look for help--she's loaded up with supplies from Ben's stash. Possibly without letting the others know that's what she's doing (some, esp Lottie and Shauna, might object and try to restrain/harm her if they knew). The rest of the group are left behind under Shauna's batshit leadership, with an increasingly unstable Lottie at her side. Natalie's journey to find civilization is a plotline in season 4.