In the dark of night in the Arabian Desert, killers conceal themselves in plain sight. In the endless sea of sand, death comes from every direction.

The jungles of Indonesia are a world of beauty and mystery. As night approaches, strange creatures emerge in the dark sky.

The Costa Rican jungle plays host to a twisted game of survival as the sun goes down. Legions of strange predators pit their weapons against the death-defying defenses of their prey. In the high canopy, prey avoids the death that stalks the forest floor, but monsters don't play by the rules. It's not a matter of if they'll face danger, but when.

The African savannah comes alive at night as creatures big and small compete for food.

At night, creatures with special killer abilities emerge in the forests of India.

In the swamps of North America, predators hide in the murky shallows. Beasts waiting patiently for their chance to feed on the living and dead.