Teams depart for Prague, Czech Republic, where they must walk across a narrow plank hundreds of feet above the Zizkov Television Tower to retrieve their next clue.
Racers travel to illusionist Harry Houdini's birthplace, Budapest, Hungary, where a puzzling Fast Forward puts one team to the test; a horse drawn carriage has teams racing against the clock.
In Bucharest, two teams strategically use their Express Pass, eager to gain an advantage; navigational frustration reaches a boiling point for another team.
Racers visit Milan, Italy, where one team faces a major setback when they're forced to travel an hour behind the pack; heat exhaustion threatens to end the race for another team.
The final three teams race through New York City where they rappel down the Empire State Building and one host Phil Keoghan crowns one team the winners.
