Two contestants from Surrey and Suffolk tackle a set of clues in and around Christchurch, New Zealand.
A team from Cambridge faces a set of clues in and around New Orleans.
A team from Wiltshire faces a set of clues set in and around Hobart, Tasmania.
Two contestants from Newcastle-under-Lyme face a set of clues set in and around Australia's Gold Coast.
Two contestants from Liverpool face clues set in and around Arizona.