In last year's finale, our heroes made the treacherous journey to the Tower and were able to turn on the power, but at what cost? The effects of this move prove to be catastrophic for everyone. Now, Miles, Aaron and Rachel have found themselves in a mysterious small town, in the great nation of Texas where Rachel unexpectedly encounters an important figure from her past. Charlie finds herself on a mission in the Plains Nation while Neville and Jason search a refugee camp for a lost loved one. Meanwhile, Monroe has discovered a gritty role in his new environment.