This is the story of Simon Kindlysides (paralysed from the waist down as a result of a brain tumour) who was the first paralysed man to walk the London Marathon.

Filmed over nearly 4 years this series follows Simon Kindlysides the first paralysed mans to walk the London Marathon using an exoskeleton suit. In the five episodes we see what drives Simon, the difficulties he has and the barriers he faces. This warts and all documentary shows how one man just keeps challenging himself and where he believes there are no limits.