For the first time, teams face off in a head-to-head competition to earn their place on the mat.

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.

Teams face the dreaded double U-turn and struggle to navigate the streets of Prague while delivering kegs to a local party.

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

Racers travel through Bahrain, where a contestant misplaces a passport; scorpions are on the menu for racers in Chiang Mai, Thailand.

With $1 million on the line, the final four teams race through Hong Kong and San Francisco on the quest to cross the final finish line first.