BBC Earth HD

'S1/E1 - Norway'. In Norway we follow a train journey that begins in the capital Oslo and heads all the way to Bodo inside the Arctic Circle. The first leg is the Dovre line, running from to the remote northern wonderland of Trondheim.

'S10/E19 - The Pursuit'. The Alaskans must hurry to secure resources and complete projects before the Arctic is reclaimed by the bitter cold as the brief Fall season comes to an end.

'S10/E9 - Ireland'. On Great Blasket Island, off the coast of Ireland, Ben stays with London couple Dan and Emily, who landed an extraordinary job as island caretakers on Europe's rugged western frontier.

'S1/E3 - Bangkok to Hua Hin'. Michael continues his exploration of Thailand by rail, steered by his 1913 Bradshaw's guide. First, he steps into the ring under the guidance of champion trainer, Master Toddy, to learn Muay Thai boxing.

'S9/E2 - Ireland'. Ben ventures to the 'Emerald Isle' to visit Georg and Bettina, an elderly couple from Austria and Germany who made the Irish wilderness their home nearly 40 years ago.

'S3/E5 - Sweden'. Ben Fogle returns to Sweden to visit Annalisa, an Italian living in the deep woods with her young son Nico.

'S2/E7 - Cold Harvest'. Jon and his brother Lee search a vast expanse of tundra.

'S4/E7'. Firefighters battle through apocalyptic scenes on Australia's Kangaroo Island as it is besieged by deadly bushfires. In Kansas, two hard-core tornado chasers allow a tourist to ride along with them.

'S10/E10 - Thailand'. Ben meets Niall, who rescues and cares for street dogs in Koh Samui.

'S11/E1 - Pulled from the Darkness'. As Alaskans enter a new dawn in the Arctic winter, they must adapt to the changing landscape if they are to survive.

'S4/E8'. In the Grand Canyon, a massive microburst causes a dangerous deluge of mud and rocks.

'S3/E3 - Azerbaijan'. Professor Bettany Hughes returns to Azerbaijan for more adventures on the Silk Roads. She crosses the country, hunting out some of the most remote and hidden areas.

'S1/E7 - Africa'. The latest series from the BBC and Sir David Attenborough explores the continent of Africa - home to the greatest wildlife gatherings on Earth. But even in this land of plenty, wildlife faces huge challenges.

'S1/E4 - Ho Chi Minh to Hoi An'. Michael Portillo boards Vietnam's spectacular Reunification Railway to make a 1,000-mile journey from Ho Chi Minh City to Hanoi. He visits the container port of Haiphong and finishes in Halong Bay.

'S1/E2 - Canada'. Ride the rails through Canada on the iconic Rocky Mountaineer train on it's jaw-dropping loop from Vancouver to the heart of the Rockies.

'S3/E4 - Albania and the Adriatic'. Bettany explores Albania's Adriatic coast. She follows in Julius Caesar's footsteps in Oricum and Apollonia, visits the magnificent Ottoman town of Berat, and discovers Albania's own 'Braveheart'.

'S1/E2'. Dara explores the darker side of the Sun, from the dangers of skin cancer to solar flares and the Bermuda Triangle of Space. Plus, the world's largest solar furnace.

'S3/E6 - Bulgaria'. Ben Fogle returns to Bulgaria to meet up with nomads Miriam and Peter after four years.

'S2/E8 - Two Feet and a Heartbeat'. More stories of the brave and hardy people who live below zero in Northern Canada.

'S1/E3 - Wales'. Take a seat on the Cambrian Line and be whisked away on an unforgettable voyage to a lost world, with majestic castles and ingenious Victorian engineering.

'S1/E4 - Ho Chi Minh to Hoi An'. Michael Portillo boards Vietnam's spectacular Reunification Railway to make a 1,000-mile journey from Ho Chi Minh City to Hanoi. He visits the container port of Haiphong and finishes in Halong Bay.