Access to this video is a benefit for members through PBS Passport.
Up Next
Back to Show
Watch Preview
NOVA
Killer Floods
Season 44
Episode 18
All over the world, scientists are discovering traces of ancient floods on a scale that dwarfs even the most severe flood disasters of recent times. What triggered these cataclysmic floods, and could they strike again? In the Channeled Scablands of Washington State, the level prairie gives way to bizarre, gargantuan rock formations.
Sign up now for inspiring and thought-provoking media delivered straight to your inbox.
Support Provided By
Unlock with PBS Passport
53:09
Join pioneering shipbuilders as they embark on a feat of maritime engineering.
1:53:34
How can the science of learning help us rethink the future of education for all children?
Unlock with PBS Passport
53:49
Discover how Allied forces conspired to destroy one of Hitler’s most diabolical weapons.
Unlock with PBS Passport
53:41
Join engineers as they race to rescue a historic lighthouse from certain doom.
52:51
Join investigators as they untangle the cause of Alzheimer’s and race to develop a cure.
53:32
Watch as Otzi, a 5000-year-old mummy, is brought to life and preserved with 3D modeling.
Unlock with PBS Passport
53:07
Retrace the thought experiments that inspired his theory on the nature of reality.
53:36
How has the land shaped our lives, from the arrival of the first Americans to today?
53:35
How did massive volcanic eruptions, inland seas, and land bridges pave the way for life?
53:35
Experience the colossal geologic forces that shaped our continent over 3 billion years.
53:37
An astonishing find could solve the mystery of Sir John Franklin’s lost expedition.
Unlock with PBS Passport
53:09
A team attempts to build the flood boat using inscriptions from an ancient clay tablet.