Two International sport stars, a host of famous faces, nearly 3000 kilometres through 5 European countries and bicycles, lots of bicycles.

In this two part special we will follow Lawrence and Freddie as they push themselves to the limits on a gruelling bike ride from Greece to London. They won’t be doing this by themselves they will be joined by over 200 other riders along the way – including celebrities and sports stars.

Neither of them have the physique to pull themselves up a mountainside on two wheels, but despite this they are going to undertake the ride of their lives. Between April 23rd and May 18th they will cycle the 2,862 km across Europe from the birthplace of the ancient Olympic Games - Olympia, in Greece - to the venue for next year’s Olympic Games – London.

But if this ride across the continent and over the Alps wasn’t hard enough, the guys are going to be making things even tougher for each other...

During this 26 day epic they will be setting each other a series of challenges to push each other to the limits – whether it be racing up killer mountains or abseiling down freezing waterfalls.

At the end of the ride which of them will have won the most challenges and claimed the all important bragging rights and raised the most for charity?

NEXT: SEE PHOTOS FROM EACH STAGE OF THE EPIC RIDE