Doctor Who: Earth Conquest is a one-hour special following the stars Peter Capaldi and Jenna Coleman on Doctor Who: The World Tour. It sees them visiting seven cities across five continents in 12 days to publicize the upcoming season. The tour launched in Cardiff, Wales on August 7 and went through London (UK), Seoul (South Korea), Sydney (Australia), New York (U.S.), Mexico City (Mexico) and Rio de Janeiro (Brazil). Note: This specials was also released on BBC America as "Earth Conquest - The World Tour".