Part one of two. Former cricketer Andrew Flintoff cycles along the unforgiving terrain of Brazil's Trans-Amazonian Highway, alongside self-confessed `bikeaholic' Rob Penn. Environmental sceptic `Freddie' embarks on the 25-day, 1,200km trek to help him assess the arguments against deforestation. Starting off in Itaituba, the duo overcome their fair share of obstacles, including blistering heat and saddle soreness, as they experience everything from gold-mining and cattle-ranching to the Amazon's very own Little Chef