SEASON FINALE: The central family has been torn apart in this series – not by zombies (not yet, anyway), but by outside forces, and everything’s getting tougher. One family member has been put down, like the rabid dog in Old Yeller, rather than become a danger to others. Yet many, many dangers exist, especially outside the immediate neighborhood. And since this is the final episode before this spinoff series goes on hiatus, expect a bloody good cliffhanger.