A teenage sorceress named Nimue encounters a young Arthur on her quest to find a powerful and ancient sword.

A twelve-year-old girl is transported by a magical black stallion to the mystical world of Albion, where she discovers that she alone is the key to saving an entire race of people.

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.