For the first time, Racers swap teammates for an entire leg. Also, the game becomes ruthless with another double U-turn.

The stakes are high when teams face the dreaded double U-turn and racers struggle to navigate the streets of Prague while delivering kegs to a local party.

The milestone 30th season of THE AMAZING RACE kicks off from Washington Square Park in New York City with some of the most competitive and accomplished group of racers ever to take on the Race. Teams travel to their first destination, Iceland, where they must traverse a massive canyon high above the Geitargljufur River.

Things get slimy at a fishy challenge, and Racers scale buildings and run through the narrow streets of Tangiers, Morocco.

One team tries to stay on track after failing to read their clue, and teams face off against one another in the second head-to-head competition of the season. (St. Tropez and Provence, France)

For the first time, Racers swap teammates for an entire leg. Also, the game becomes ruthless with another double U-turn.

Teams face off against one another in the second head-to-head competition of the season. (Provence, France)

For the first time ever, teams square off head-to-head in a competition to earn their place on the mat and avoid elimination.

With the one million dollars on the line, the final four teams race through Hong Kong and San Francisco on the quest to cross the final finish line first. After 10 countries, 21 cities and more than 29,000 miles, host Phil Keoghan will crown one team the winners of the 30th Race around the world.

It's a first as the Racers travel to Bahrain. While on the road, one team's game is on the line when one of them misplaces their passport.

It's a first as the Racers travel to Bahrain. While on the road, one team's game is on the line when one of them misplaces their passport.

With the one million dollars on the line, the final four teams race through Hong Kong and San Francisco on the quest to cross the final finish line first. After 10 countries, 21 cities and more than 29,000 miles, host Phil Keoghan will crown one team the winners of the 30th Race around the world.