Kyle Barnes has been plagued by possession since he was a child. Now an adult, he embarks on a spiritual journey to find answers, but what he uncovers could mean the end of life on Earth as we know it.

What did the world look like as it was transforming into the horrifying apocalypse depicted in “The Walking Dead”? This spin-off set in Los Angeles, following new characters as they face the beginning of the end of the world, will answer that question.