Tim, Thom and Trevor had five weeks to travel from River Cottage to Land's End without any money.To survive they had to hunt for food for themselves and renewable electricity for their converted milkfloat - a three-ton, 1980’s electric milk float - top speed of 17 miles an hour.Get it right, and they’d eat like kings as they trundle through some of the most beautiful places in Britain.Get it wrong and they'd be starving, and going nowhere fast!