Day of the Dead (1985)7.7 /10

Storyline:  In a post-apocalyptic world overrun by zombies, a group of scientists and soldiers hide in a Florida bunker. Tensions rise as the scientists experiment on the undead, angering the military. When the soldiers discover they've been used as test subjects, they retaliate—just as zombies infiltrate the base from above, turning the last refuge into a final battleground.