Following the struggles of a group of scientists and soldiers, who hide in a secret place underground, in order to survive from the danger and horror of zombies that rule the world and begin to search for humans in everywhere, in order to murder them.
This deconstruction is so encompassing that the climactic explosion of zombie mayhem - revealing and awesome though it is - is practically an afterthought.
The years have been kind to Day Of The Dead, however...And though it's still a disappointment in relation to its two predecessors, it has much to recommend it.
Demonstrates you don't need to be bombed back into the stone age when you can reach that state by exercising your own stupidity. The subterranean setting is the tip-off: While the zombies evolve the humans devolve -- almost literally -- into cave men.