Teams travel to Sao Paulo, Brazil where tensions rise between two teams when one goes back on their word.

Racers travel to Zanzibar, Tanzania where teams build and deliver desks to a local school. Also, tensions rise when teams face a blind double U-turn, and one team's Race may be in jeopardy when they misplace their passports.

(Alesund, Norway) - Racers take on a record setting Roadblock by helping build a 13-story bonfire in Norway.

Several teams come together and target one set of Racers at the double U-turn in Italy.

Teams race through Venice, Italy where one team reaches a breaking point in a frantic search for a water taxi.

While driving to the Detour, one team ends up going the wrong way, and a surprising U-turn causes friction between racers.

An extreme fear of heights paralyzes one Racer at a Roadblock when faced with bungee jumping 240 feet from a bridge into the Corinth Canal.

Teams battle the scorching heat while transporting shrimp baskets for one mile to a local fisherman, and one Racer approaches their breaking point during the exhausting Roadblock.

The final four teams race through Seoul, South Korea to clinch a spot in the finale on a chance to race for the $1 Million dollar prize.