The Amazing Race

The 17th edition of the reality series begins in Gloucester, Mass., and the 11 teams then fly from Boston to London. First, the pairs visit Stonehenge to find a clue and then travel to Eastnor Castle, where they use watermelons to knock down a knight. The team to finish first on the initial leg receive an Express Pass that allows them to bypass a future challenge.

One team considers using their precious Express Pass after playful Ghanaian locals give some teams a headache while they struggle to complete the high-stakes roadblock.

Challenging detour tests one couple's relationship, while another team's Racer requires medical attention, threatening their position in the competition.

After teams volunteer at a local school in Ghana, THE AMAZING RACE makes it's first-ever trip to the Arctic Circle, where one couple finds themselves in an unfortunate position and contemplate making a game changing decision.

Vegetarian racer struggles with a difficult decision when faced with a Norwegian delicacy, and Teams face their fears of heights during a gut-wrenching Roadblock.

Racers struggle to complete their creative detours before putting in a proper day's work in the fields, where they discover the key to potato farming is manure.

Teams are clowning around when they learn a traditional Russian circus act, but it's no joke when multiple teams make a critical error and misread a clue, jeopardizing their positions in the Race.

Following a huge mistake, one Racer makes an important decision that will impact their team beyond the finish line and for the rest of their lives.

Tension among the teams runs high when, for the first time ever, two teams are U-turned and have to complete an extra task, jeopardizing their chances of making it to the final four.

After Racers become violently ill during a challenge, the stress of the Race finally catches up to one team as a Racer threatens to quit.

The final four teams travel to South Korea where they battle it out on water and ice to make the final three.