Thud! - they sit you down. Snap! - you buckle in. The music swells; the motors rev. You grab the bar; you square your feet. Feel your heart race; feel your hands sweat. Endorphin rush? Thrill therapy? No - it's Walt Disney World, where you'll find some of the world's most extreme ride experiences - and you won't find them anywhere else.

Disney's Imagineers have created some of the most innovative technological advancements to power attractions like Mission: Space, Tower of Terror, Dinosaur, and Rock'n Roller Coaster - Disney's ultimate thrillmakers, which stand at the apex of modern ride design.
And now, for the first time, you'll have the chance to see these rides like never before as the Discovery Channel takes you behind the scenes and inside Disney's most intense thrill experiences to discover their secrets: What makes them tick? Why do we find them so thrilling? How do they affect our bodies? Our brains? And why do we keep coming back for more? You'll find the answers inside: "America's Thrillmakers."