What does it take to restore, maintain and drive a vintage bus? The Bus Inspectors explore 'heritage' skills which must, themselves, be preserved if future generations are to experience bus history. Sam Carter from the London Transport Museum explains the museum's project to sustain heritage skills. Gerard Butler recalls the skills involved in driving 'crash' gearboxes and why groups like the Ribble Vehicle Preservation Trust are finding them hard to sustain. Jack Abbott and Matt Kitchin take us behind the scenes at Stagecoach Yorkshire's Chesterfield depot, where a collaborative restoration for The Museum of Transport, Greater Manchester is helping today's bus apprentices to learn skills from the past. Plus, there's inspiration from Kyra Hill at Heritage Skills Academy who explains how apprenticeships are keeping alive heritage skills in the world of classic cars. Presented by David Sheppard.

Will our preserved vehicles be cherished forever? The Bus Inspectors find out what happens to historic buses and coaches when they leave preservation and why there's no guarantee of a happy future. Preservationist James Pratt describes the realities of keeping old buses alive and the dilemma which led him to sell a bus he'd lovingly restored. Its current owner, Louis Richards, explains why he loves the bus for what it has become today - a café dedicated to the memory of his son. James Freeman from Friends of King Alfred Buses describes the tragic fire of 2023 which claimed seven preserved buses and the Friends' incredible project to rebuild one partial survivor, their 1950 Leyland Olympic. Plus, the 'ones that got away' - the buses and coaches we wish had made it to preservation. Presented by David Sheppard.

What does the future hold for our bus museums and collections? The Bus Inspectors uncover the challenges of preserving our modern bus history and hear why there are some gaps in our national collection. Katariina Mauranen, James Freeman and Maxson Goh talk about the transition from spanners to keyboards in the workshop, while Stefan Baguette from Alexander Dennis considers the preservation prospects for today's electric buses. Plus, highlights from the 1930s at Amberley Museum in Sussex and the 1910s at the London Transport Museum Depot at Acton as The Bus Inspectors continue their national grading project... and Tim Hedley-Jones from the Railway Heritage Trust provides a perspective on grading and the importance of prioritising our heritage. Presented by David Sheppard.