Joshua Wurman

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Anyone who has seen "The Wizard of Oz" knows that an oncoming tornado is nothing to trifle with, but "extreme filmmaker" Sean Casey takes viewers right into the heart of Tornado Alley and inside the storms themselves to capture valuable research data and unprecedented footage.

A documentary portrait of storm chaser Reed Timmer, who was an inspiration for Glen Powell’s character in Twisters.

Witness the awesome power and the unimaginable destruction of explosive volcanoes, ground-buckling earthquakes, and deadly tornadoes as you head into the field with scientists who risk their lives exploring the origins and behaviors of these fearsome natural disasters.

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Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Anyone who has seen "The Wizard of Oz" knows that an oncoming tornado is nothing to trifle with, but "extreme filmmaker" Sean Casey takes viewers right into the heart of Tornado Alley and inside the storms themselves to capture valuable research data and unprecedented footage.