NARRATOR: Sindh Province, southern Pakistan.
These ruins, spanning 250 acres of the Indus River valley,
represent one of the earliest civilizations in the world.
Known as Mohenjo-daro, this 4,000 year old lost city
was first uncovered by archaeologists in 1922.
Mohenjo-daro came to a height around 2000 BC.
For some reason, unknown reasons,
it was totally wiped out.
You know, the whole civilization vanished.
And we do not know why and how.
DAVID CHILDRESS: When British archeologists
first excavated Mohenjo-daro, what they found
astonished them.
And that was that people were just lying dead in the streets.
Sometimes holding hands.
It was like some terrible doom had just
totally wiped out this entire city,
and everyone was just instantly dead.
In 1979, British researcher David Davenport
published startling findings about the demise
of Mohenjo-daro.
He revealed that there was a kind of epicenter in the ruins,
approximately 50 yards wide, where
pottery, stones, and other objects
were melted on one side.
Many appeared crystallized and fused
together, as though subjected to instantaneous extreme heat.
Davenport concluded that this ancient civilization
must have been destroyed by a nuclear explosion.
By finding fused bricks, vitrified walls,
pottery vessels that had completely melted,
and also skeletons that were calcified,
and apparently some of them even still radioactive,
he decided that Mohenjo-daro had been nuked.
ERICH VON DANIKEN: In Mohenjo-daro, you
find some of the ruins which are simply
melted stones, which means extreme heat
must be able to melt the stone.
At that time, some thousands of years
ago, we humans had no extreme heat.
So it must have come from a weapon.
NARRATOR: How could a 4,000 year old city
have been wiped out by a weapon that wasn't even developed
until the 20th century?
Some believe the answer may lie in the ancient Hindu holy book,
the "Ramayana of Valmiki," which tells of epic battles
with a monstrous weapon called the Brahmastra.
Brahmastra is a weapon named after Brahma
himself, god Brahma.
It has a heat seeking device put into it,
and also motion detecting.
The fallout from these weapons are reported in the Ramayana
as lasting for months and years after the blast.
People's fingernails were coming off,
people's hair were falling off.
So it's got all the signatures of an atomic explosion.
The descriptions of the aftermath
of the use of the Brahmastra sound
just like descriptions of Hiroshima and Nagasaki.
NARRATOR: But could such powerful weapons
of mass destruction have existed on Earth
thousands of years ago?
And is it possible that the city of Lanka, where
the ancient texts say the Brahmastra weapon was
unleashed, was not a fictional location,
but the site known today as Mohenjo-daro?
MAN: Those texts are chock-full with extraterrestrials,
or the so-called gods having waged
a war up in the sky that our ancestors actually witnessed.