We're at the spiritual home of Scottish mountain biking, Fort William, for the 2013 World Cup and there's no shortage of action. First there's the fast and furious 4X, then we'll be heading to the top of Nevis range for the downhill, where the racers plummet 555 metres down one of the longest and toughest courses on the world cup circuit. Also, we're joining some enterprising young filmmakers who've been making a name for themselves in Lochaber and Cameron McNeish explores one of Scotland's finest hills, Garbh Bheinn of Ardgour.