Around the World in 80 days' follows endurance athlete Mark Beaumont as he takes on the greatest challenge of his life - to smash his 2008 world cycling record. Part One of this Two part documentary sees Mark set off on his mission to ride 30,000km around the world. This epic will see him attempt to ride for 16 hours, averaging 240 miles daily, to circumnavigate the globe in just two and a half months. This gripping adventure takes us on a journey around the globe with a truly unique perspective. With a backdrop of stunning landscapes, countries and cultures, we see first hand the raw grit, punishing physical determination and mental resilience it takes for one man to strive towards his ultimate goal.