In 2008 Sean Conway set off on a 1,000 mile bike ride that would shape the next 10 years of his life, as he became obsessed with the idea of becoming a real ultra cyclist. This is his story, how he tried and failed many times to break a cycling world record, and the story about his final world record attempt, cycling 4,000 miles across Europe. Sean nearly gave up on his dream after tragically losing two of his ultra cycling friends, but decided to continue in their honor with his quest to chase big miles on two wheels. Sean looks back at some of his cycling heroes and heroines and the boom in ultra cycling over the last decade.