Tony Kirkham and climber Jon Hammerton set out from Kew Gardens on a brand new journey to discover the value and the beauty of British trees. Show more

Tony Kirkham makes an emotional return home, and climber Jon Hammerton is climbing in an inner city cemetery in an attempt to discover if trees and cities can co-exist.

Tony Kirkham goes truffle hunting with a pig and Jon Hammerton gets to grips with a forest horse in an attempt to discover whether old fashioned techniques still get the job done. Show more

Tony Kirkham tracks down an eight thousand year old tree and climbs into the forest canopy to discover the role of trees in arresting global warming.

To end the series, Tony Kirkham undertakes army manoeuvres before facing the challenge of his career when he attempts to climb the biggest tree in Kew Gardens for the first time.

Tony Kirkham and Jon Hammerton canoe across Windermere and tackle a crisis in the branches at Kew in an attempt to discover how trees can be saved. Show more