New series. Five pairs of travellers - Sue and Clare, Felix and Josh, Natalie and Shameema, Jinda and Bindu, and Darron and Alex - set off from Greenwich, south-east London, passing through five checkpoints to reach their final destination of Singapore - without getting on a plane or using mobile phones or credit cards. Their first port of call is the ancient Greek city of Delphi. The stakes are high - everyone wants to be first to the finish line to win the cash prize.

S1 Ep1