Ten questions stand between brothers James and Joey and £1,000,000, as they face a gruelling trek across the Scottish Highlands. A familiar Rolls Royce, a race through Venice and a dramatic encounter in an Italian palazzo await.
An obstacle stands in the way of the eight remaining duos. The duos leave the Highlands and embark on an intense race against time.
The seven remaining duos are scattered all over the world. Beth and Jen get to know the world of the Controller. The Bone brothers find themselves in the Amazon rainforest.
Kamara and Josh search the Atacama Desert. They have to cross a train station, a solar farm and remote villages. Josh deals with his trauma.
After an epic climb in Chile, Kamara and Josh have to answer a tough question. The Controller welcomes a new duo, Grace and Daniella, to St Mark's Square in Venice. Tanaka and James dive into a hidden cave.
The Bone brothers are marooned on a stranded catamaran with only a bottle of rum. The Controller gives them a chance to answer a question. James and Sam continue their adventure in the Chilean desert.
Brian Cox
Host
Jamie Goold
Director
Barbara Broccoli
Producer
Michael G. Wilson