BBC Earth

Volcano expert Chris Horsley is in Iceland to inspect Katla, one of Europe's largest and most dangerous volcanoes. His task is to install an early warning system on this glacier-covered monster.

Exploring the remarkable railway line that reaches the far north tip of mainland Britain. The Far North Line travels from Inverness in the Highlands of Scotland to Wick in Caithness county, with a daily ScotRail service.

Steve and the team head to the remote island of Isla del Plata which has the largest congregation of giant manta rays in the world. Working with one of the world's top manta scientists, Steve heads off to try and dive with these majestic giants.

At the Cornish fishing harbour of Newlyn, Nick Crane re-lives an astonishing, unsung feat of heroic British seamanship when, in 1854, a tiny fishing boat set sail from Newlyn to Melbourne.

Liz Bonnin travels to Tbilisi in Georgia, to witness a life-saving operation on a magnificent Asian elephant named Grande. Having survived a catastrophic flood at the zoo where he lives, Grande has a badly infected tusk. One of the world's top wildlife vets attempts to remove it in a race against the clock, as every minute Grande is under anaesthetic, the weight of his own body risks damaging his vital organs.

Sue transports a new generator. Andy and Denise gather wood. Ricko and his kids hunt for muskrat. Chip and Agnes move camp.

Gregg Wallace is in France, at an enormous croissant factory where they produce 336,000 of the flaky pastries every day. He follows the production of croissants from the arrival of 21 tonnes of butter right through to dispatch.

Exploring the remarkable railway line that reaches the far north tip of mainland Britain. The Far North Line travels from Inverness in the Highlands of Scotland to Wick in Caithness county, with a daily ScotRail service.

At the Cornish fishing harbour of Newlyn, Nick Crane re-lives an astonishing, unsung feat of heroic British seamanship when, in 1854, a tiny fishing boat set sail from Newlyn to Melbourne.

Liz Bonnin travels to Tbilisi in Georgia, to witness a life-saving operation on a magnificent Asian elephant named Grande. Having survived a catastrophic flood at the zoo where he lives, Grande has a badly infected tusk. One of the world's top wildlife vets attempts to remove it in a race against the clock, as every minute Grande is under anaesthetic, the weight of his own body risks damaging his vital organs.

Sue transports a new generator. Andy and Denise gather wood. Ricko and his kids hunt for muskrat. Chip and Agnes move camp.

Gregg Wallace is in France, at an enormous croissant factory where they produce 336,000 of the flaky pastries every day. He follows the production of croissants from the arrival of 21 tonnes of butter right through to dispatch.

Exploring the remarkable railway line that reaches the far north tip of mainland Britain. The Far North Line travels from Inverness in the Highlands of Scotland to Wick in Caithness county, with a daily ScotRail service.

At the Cornish fishing harbour of Newlyn, Nick Crane re-lives an astonishing, unsung feat of heroic British seamanship when, in 1854, a tiny fishing boat set sail from Newlyn to Melbourne.

Liz Bonnin travels to Tbilisi in Georgia, to witness a life-saving operation on a magnificent Asian elephant named Grande. Having survived a catastrophic flood at the zoo where he lives, Grande has a badly infected tusk. One of the world's top wildlife vets attempts to remove it in a race against the clock, as every minute Grande is under anaesthetic, the weight of his own body risks damaging his vital organs.

Sue hunts waterfowl. Andy and Denise fight the river breakup. Ricko and his kids hunt geese. The Hailstones hunt small game.

Gregg Wallace is in Leeds, at an enormous mattress factory where they produce 600 bouncy beds every day. He follows the production of pocket sprung mattresses from the arrival of hard steel right through to soft bedding heading out of dispatch.

The magnificent steam train Tornado is coupled with 13 luxury vintage carriages on a six-hour journey through Yorkshire to Northumbria and the Borders. Travelling in style from York to Edinburgh on a 200-mile historic trip.

High in the mountains of Morocco lives a descendant of a long line of macaque rulers. She has been in charge of this troupe for many winters - one of the longest recorded reigns of an alpha - but this year is likely to be her last.

They have the most complex social lives of any animal group on the planet. From dusky leaf monkeys who compete to babysit an infant to gibbons who learn dare-devil treetop acrobatics with their playmates, friends and family are at the heart of primate life. In the Amazon we meet a female spider monkey elder, who leads her troop to a unique food resource: aquatic plants brought within reach on raging floodwaters.

Adventurer Ben Fogle journeys to the mountains of central Portugal, to live with Alex, a British man who traded in his lucrative retail career for his own mountainside hideaway. Later, Ben lollipops trees to protect them from forest fires.

Sue Perkins starts her journey in Tokyo, Japan's glittering capital city and home to 36 million people. She trains with a female sumo wrestling team, meets a family who live with robots and attends a solo-wedding.

Another three presenters visit people fighting to rebalance vulnerable habitats around the world. Liz Bonnin travels to California to learn about the increasingly invasive wildfires hitting the headlines. Scientists can see clear links between the fires, climate change, raised temperatures and an extended drought season. There is one crucial element that is key to a sustainable future in California: biodiversity.

High in the mountains of Morocco lives a descendant of a long line of macaque rulers. She has been in charge of this troupe for many winters - one of the longest recorded reigns of an alpha - but this year is likely to be her last.

They have the most complex social lives of any animal group on the planet. From dusky leaf monkeys who compete to babysit an infant to gibbons who learn dare-devil treetop acrobatics with their playmates, friends and family are at the heart of primate life. In the Amazon we meet a female spider monkey elder, who leads her troop to a unique food resource: aquatic plants brought within reach on raging floodwaters.

Adventurer Ben Fogle journeys to the mountains of central Portugal, to live with Alex, a British man who traded in his lucrative retail career for his own mountainside hideaway. Later, Ben lollipops trees to protect them from forest fires.

Sue Perkins starts her journey in Tokyo, Japan's glittering capital city and home to 36 million people. She trains with a female sumo wrestling team, meets a family who live with robots and attends a solo-wedding.

Another three presenters visit people fighting to rebalance vulnerable habitats around the world. Liz Bonnin travels to California to learn about the increasingly invasive wildfires hitting the headlines. Scientists can see clear links between the fires, climate change, raised temperatures and an extended drought season. There is one crucial element that is key to a sustainable future in California: biodiversity.