100 motorbikes come in for auction from every era of the 20th century, and the team assess a 1965 Vanden Plas Princess with a four litre Rolls Royce engine that's seen better days

A rusty 1970 Fiat 500 goes under the hammer - Derek Mathewson reckons it's the kind of vehicle that is so iconic that it has to be saved

Tucked away in the showroom is a WW2-era Willys Jeep. Its original condition means there might be a bunfight for a military vehicle that's ripe for restoration

Michael Portillo is in the glens of Antrim, where he is transfixed by tales of fairies and legends of the sea. At the entrance to Belfast Lough in Whitehead he discovers a museum which tells the story of Ireland's railway heritage. He also sees if he has what it takes to join the local rowing club. At the medieval Carrickfergus Castle, Michael learns of the town's important role in the history of Ireland, when William of Orange landed at its harbour and went on to fight the Battle of the Boyne, which is commemorated by Unionists to this day

Michael Portillo is in Bangor, County Down, en route to the Northern Irish capital of Belfast. Along the way he enjoys live music on a boat, stops off at the imposing parliament building at Stormont and explores the regenerated Titanic Quarter on the Maritime Mile

Michael Portillo continues his railway journey along the Atlantic and Irish Sea coasts of Northern Ireland and the Republic of Ireland. This time, he makes his way from the vast beaches of the Carlingford Peninsula towards Drogheda and Newgrange, before arriving in capital of the Republic of Ireland, Dublin, where he visits Dublin Castle and Dublin docks

Michael Portillo travels from the capital of the Republic of Ireland, Dublin, on the DART suburban railway to the harbour town of Dun Laoghaire. He joins the crew of the RV Malice to survey what lies beneath the waves in Dublin Bay. Back on dry land, the DART takes Michael to his next stop, Sandycove, where James Joyce, one of Ireland's greatest writers, found inspiration

How the myth of German invincibility was finally debunked by their defeat at the Battle of Stalingrad. Narrated by Laurence Olivier

How German U-boats were used to disrupt the flow of goods from America across the Atlantic Ocean in an attempt to starve Britain into submission

Account of Operation Barbarossa, Germany's plan to invade the Soviet Union in 1941, revealing the massive human and financial cost endured by the Soviet people, who fought a bloody and lonely war with little support from the Allies. Narrated by Laurence Olivier

Bomber Command is unable to hit its targets precisely and attacks German cities under cover of darkness, while the Blitz in Britain brings public demand for revenge strikes, and Arthur Harris takes charge of Bomber Command

On the last leg of his epic journey across the north of England, narrowboater Robbie Cumming tackles the fast-flowing River Ouse and is forced to make an emergency stop. His destination is Ripon Basin at the outer reaches of Britain's inland waterways

Narrowboater Robbie Cumming begins a fresh set of adventures along the waterways of the north of England and the Midlands. He is forced to make a running repair to his narrowboat the Naughty Lass while on the Tinsley lock flight in South Yorkshire. He then cruises beneath Conisbrough's magnificent viaduct and must wait for an unusual sliding railway bridge to open on the Stainforth and Keadby Canal

Robbie Cumming tackles the fast-flowing River Trent and is invited to join a night-time illuminated boat parade. However, his journey is hampered by a damaged wall in Worksop and a water shortage on the Chesterfield Canal which threatens his voyage

Autumnal fog and an overheating engine prove to be problems for narrowboater Robbie Cumming. As he navigates a Roman waterway, it proves to be a journey of many challenges as he runs aground and breaks down in Nottingham

Andy Torbet and local seafaring volunteers build a boat made of just willow and cow hide, and set out to cross the dangerous Pentland Firth as the ancient Orcadians would have done. Neil Oliver investigates the extraordinary discovery of some human bones, Chris Packham goes in search of whales and Shini Somara uncovers the powers of the tides

Part one of two. Simon explores the history of both the Republic of Ireland and Northern Ireland and examines the rich culture and troubled past of the island. Simon arrives by ferry in Co Wexford and travels along the coast, joining the thousands who try to climb the sacred mountain of Croagh Patrick. He crosses the border to visit Crom Castle and Londonderry, before journeying to the northernmost point at Malin Head

Part two of two. The second leg of Simon's journey begins at the Giant's Causeway, before visiting a kelp farm on Rathlin Island. He heads to the Dark Hedges in Co Antrim, one of the filming locations from Game of Thrones, and visits Belfast for the July 12 parades, discovering how the event has divided the city. He also learns more about Oliver Cromwell's influence on Ireland, attends the Gaze film festival, and meets monkeys at an animal sanctuary in the Wicklow mountains

Robbie Cumming sets out to explore the meandering waterways of inner city Birmingham including the Soho Loop and the Engine Arm Canal