The Hairy Bikers' Restoration Road Trip

Dave and Si swap the chef's hats for hard hats and travel around Britain in search of the most exciting restoration projects of our industrial past. Here they celebrate 150 years of the London Underground and fire up a Victorian barn engine.

It's full steam ahead for the Hairy Bikers as they help rebuild an early traction engine in Wiltshire, tackle a cotton spinning mule that's laid dormant for decades in Derbyshire and restore a rare coal barge in Cheshire.

Working on the massive job to reconstruct steam train `The Night Owl', the Bikers forge a steel wheel taller than they are for the biggest locomotive restoration in Britain.