Episode Overview
The teams depart from their Pit Stop in Istanbul, Turkey, heading to London, England, where they stop by the iconic Abbey Road, renowned for its Beatles connection. Two teams take a chance on an earlier flight, while the other two play it safe with a later one. Upon arrival, they enjoy a ride on the London Eye before tackling a Detour that presents a choice between Brains or Brawn. Uchenna and Joyce and Meredith and Gretchen decide to go for Brawn, stacking boats, while the other teams choose Brains, solving clues that lead them to Sherlock Holmes' residence. Uchenna tries to assist Meredith and Gretchen when he sees them struggling but soon realizes he can't. The teams then face a Roadblock at the Millennium Dome, where they must navigate a double-decker bus through an obstacle course. One team takes the lead, while a Yield affects the progress of the remaining three teams.