Erika Moore is trapped behind The Wall — collared, tested, and forced to play a deadly game of survival inside TJ Swenson's domain. While she fights for every breath and plots her next move, Vince, Star, and Daniel push through the ash-choked ruins, and the resistance in the west and Texas inches closer to open war.

Based on Sara F. Hathaway's bestselling Changing Earth novels.

Subscribers get this episode and the full season one week, commercial-free early access.

Some walls are built to break people. Others are built to be torn down.