The final three contestants battle to the finish line where one wins 1 million dollars.
In part 1 of the season finale teams return to the United States via Belfast, Northern Ireland, where one team is eliminated before the Final Three is determined.
The final five teams race through Scotland, where they encounter a double U-turn that puts two teams in jeopardy of elimination.
The final five teams visit Germany and plunge 37 stories through the Berlin sky. Later, the duos take a twisted journey through a psychedelic labyrinth.
This season's cast includes a heavy metal rocker, a double amputee professional snowboarder, a world champion lumberjack, “The Fabulous Beekman Boys” and Chippendales dancers.