Spin off series of The Walking Dead that portrays the beginning events of the zombie apocalypse in the West coast during the same time frame when the city of Atlanta was falling under attack, while Rick was in a coma at the local hospital. It shows how the strain was already in full effect in the south while it's just starting in California.

London widow Cora Seaborne moves to Essex to investigate reports of a mythical serpent. She forms an unlikely bond with the village vicar, but when tragedy strikes, locals accuse her of attracting the creature.