The teams begin their adventures in New York's Times Square, where a game-changing element is introduced. Contestants take a gut-wrenching leap of faith.

The Race continues through London, England, where the Express Pass is on the line, but several teams’ hopes of a first-place finish are capsized while boating in a punt in Oxford.

The race continues in Scotland's Shetland Islands, where the teams must corral an unruly flock of sheep through an obstacle course.

The race continues in Copenhagen where the dentists realize they may need to use their "Save" during a painstaking Detour. Later, one team's lack of communication leads to a massive meltdown on the mat.

As a double U-turn looms in the exotic city of Marrakech, Morocco, contestants suspect each other of playing dirty.

The race continues in Morocco, where a Road Block requires a member of each team to walk across a narrow bridge suspended high above the Atlas Mountains.

As the teams race through Palermo, Sicily, unlikely alliances are formed; contestants must beat the clock during a high-octane go-cart race.

The race continues in Valletta, Malta, where teams are thrown off balance when they must serve drinks to the knights of Malta. Also, a blind Detour leaves racers on a slippery slope.

The race continues in Singapore where a dangerous misstep leaves one competitor dangling 600 feet above the ground. Also: A traditional Asian detox leaves some teams writhing in pain.

The contestants get muddy with an ornery ox in Manila, Philippines, during an unforgettable switchback challenge.

The final teams race to the finish line in Los Angeles.