One big splatterfest, very bloody, very gory and the sort of thing Arnold Schwarzenegger would've starred in in the 1980s. Instead we have man mountain Dave Bautista recruited by a shady government man to take a band of mercenaries into the walled off city of Las Vegas, which now is inhabited only by a zombie horde, to empty a casino vault of millions in cash. Along for the ride is Garrett Dillahunt who, in the employ of the shady government man, has another agenda . The trouble is it's less a prison for zombies than their kingdom mainly because the undead are not all of one caste, and they have a leader (explained, sort of, in the film's prologue) who controls the more intelligent ones. They're actually more like Orcs than zombies but either way they object strongly to these annoying humans trespassing on their territory. This cues a lot of bloodshed, shooting and general gore that makes the whole thing borderline humorous. Overall it's entertaining but it lacks the frights needed for a good zombie film and it's not as good as director Zack Snyder's earlier zombie remake Dawn Of The Dead (2004). I think the recent plethora of zombie film and TV has weakened the sub-genre making zombies simply annoying nowadays, we all know how to despatch them easily with nothing more than a kitchen knife!!