Dangling coaster Katun drops and rolls passengers in the Italian skies.

Dangling coaster Katun drops and rolls passengers in the Italian skies.

Insane Coaster Wars travels to Italy where riders are launched up a 147-foot-high loop, then it’s on to Canada for a 540-degree helix, and finally to the US for the world’s first hypercoaster, lifting riders over 200 feet into the air.

Insane Coaster Wars travels to Italy where riders are launched up a 147-foot-high loop, then it’s on to Canada for a 540-degree helix, and finally to the US for the world’s first hypercoaster, lifting riders over 200 feet into the air.

The battle rolls to Australia for a coaster that plummets riders down a 130-foot hill, then to Italy for a coaster that rockets riders from 0 to 70 mph in 2.2 seconds, and finally to the US for the world’s first 4th dimension coaster.

The battle rolls to Australia for a coaster that plummets riders down a 130-foot hill, then to Italy for a coaster that rockets riders from 0 to 70 mph in 2.2 seconds, and finally to the US for the world’s first 4th dimension coaster.

A coaster in Spain that accelerates to 80 mph in 3.5 seconds; a ride in Japan with a 121-degree vertical drop; and a zero-g roll in Doswell, Va.

A coaster in Spain that accelerates to 80 mph in 3.5 seconds; a ride in Japan with a 121-degree vertical drop; and a zero-g roll in Doswell, Va.

We don't have an overview of this episode, please check back later.

We don't have an overview of this episode, please check back later.

Insane Coaster Wars: World Domination continues in Germany with the tallest wooden coaster in the world. Next, we travel to Canada to ride an insane 90mph coaster and then back to the US for a gut-wrenching 4G coaster.

Insane Coaster Wars: World Domination continues in Germany with the tallest wooden coaster in the world. Next, we travel to Canada to ride an insane 90mph coaster and then back to the US for a gut-wrenching 4G coaster.

The battle rolls on to Australia for a coaster that shoots riders backwards at 100 mph, then to Germany for a ride that twists down 2, 360-degree corkscrews. And finally, we head to the US for a monstrous 5,000-ft coaster.

The battle rolls on to Australia for a coaster that shoots riders backwards at 100 mph, then to Germany for a ride that twists down 2, 360-degree corkscrews. And finally, we head to the US for a monstrous 5,000-ft coaster.

Get ready to fly at the speed of fear. These are some of the fastest roller coasters on the planet, reaching speeds of up to 128 miles per hour. Featured Coasters: Top Thrill Dragster at Cedar Point in Sandusky, OH; Desperado at Buffalo Bill’s in Primm, NV; Xcelerator at Knott’s Berry Farm in Buena Park, CA; Bizarro at Six Flags New England.

Get ready to fly at the speed of fear. These are some of the fastest roller coasters on the planet, reaching speeds of up to 128 miles per hour. Featured Coasters: Top Thrill Dragster at Cedar Point in Sandusky, OH; Desperado at Buffalo Bill’s in Primm, NV; Xcelerator at Knott’s Berry Farm in Buena Park, CA; Bizarro at Six Flags New England.