After four episodes, I'm finding the series somewhat interesting plot wise, but very annoying character wise and with some serious inconsistencies. Most of the characters behave like idiots. Trained personnel (police & military) don't aim their weapons, soldiers don't take cover or adopt all-round defence, and survivors walk down open roads even after the threat is known. They really needed a competent military and weapon advisor for this show. The robo-dogs are apparently a real threat and can take out a bunker full of security personnel, but can't overcome an elderly scientist. Likewise, none of the security personnel can injure these robo-dogs with their shooting, but a divorced wife can take one out with an non-aimed burst of a weapon she's never used before. Hopefully the series will pick up from here.