This month's Adventure Show sees a record 1,000 competitors head north of Inverness in the middle of winter, with 17 hours of darkness, for one of the world's toughest mountain bike races - the Strathpuffer 24. With deep snow, brilliant sunshine and bitterly cold temperatures, this year it has been dubbed the 'Perfect Puffer', with many riders saying it is the best ever. This programme also joins someone as he takes his first steps back to a fit and healthy life. And what do you do with six days off work? For two athletes the answer is simple - run over 200 miles right across Scotland.