Teams endure a steamy detour in Istanbul to keep their race from getting scrubbed. Meanwhile, after finishing last on the previous leg, Josh and Brent must overcome a tasty Speed Bump in order to keep their hopes of racing alive.

As the competition heats up in Moscow, James and Abba continue on their quest to recover a lost passport. Meanwhile, an ankle injury takes its toll on one racer and threatens the team's ability to finish a challenge.