Wild UK

Colin and Lucy begin their week-long adventure around the UK's very own wildernesses with a look at our rivers.Colin travels up the River Wye following the king of fish, the salmon - whilst Lucy discovers the wilder side of canals at night. The show goes behind the scenes with Steve Backshall and the Wild Alaska Live team as they try to film the elusive salmon shark.Plus viewers will discover how the return of one of Britain's long-lost beasts - the beaver - is changing the landscape and reveal how the UK's rivers are important for one of the world's most peculiar fish – the sea lamprey.

Lucy Cooke and Colin Stafford-Johnson continue their week-long adventure around the UK's wildlife hotspots. Today it's the turn of wild forests.Lucy discovers how the success of the pine marten in Scotland is also helping a recovery of the animals in Wales. Colin travels deep in to one of Britain's wildest places - Keilder Forest - and the team go behind the scenes with the Wild Alaska team tracking down grizzly bears.The show also discovers the surprising blue beetle living in the heart of Dartmoor's wooded valleys and how a long lost beast has made a comeback to our forests: the wild boar.

In today's programme Colin Stafford-Johnson and Lucy Cooke look at the UK's wild seas.Lucy discovers how the white-tailed sea eagle has made a dramatic return to our coastline. Colin makes his first trip to the Farne Islands, home to a world-class seabird spectacular.Wild UK will investigate a giant that visits our coast during the summer, and how the seas of Suffolk hold the key to revealing the surprising giants of the past that once roamed our lands. And viewers will also get to go behind the scenes with the Wild Alaska Live team on the search for orca.

Lucy Cooke and Colin Stafford-Johnson continue their exploration of the UK's wildlife with a look at our mountains.Lucy tries to track down a seriously clever crow - the raven - while Colin travels to the wild lands of Snowdonia to discover how this dramatic landscape was formed.The programme also discovers how the mountains of Scotland have become the playground of golden eagles, and investigate whether the UK will ever again play host to a long lost beast – the lynx.Plus the team go behind the scenes with the Wild Alaska Live team, as they search for the walrus.

Colin Stafford-Johnson and Lucy Cooke conclude their week-long adventure around the UK by exploring wildlife in our cities.Urban areas may not be the most obvious wilderness, but with over three quarters of city space defined as 'natural' there's plenty of opportunity for wildlife to thrive.Colin travels to Newcastle to look for a seabird with a liking for high-rise living. Lucy travels to Brighton to meet Dr Dawn Scott who's unravelling the reasons behind the red fox's urban habits. Viewers will also discover some top tips for finding the wild amongst the city and the programme will reveal how the UK's most colourful bird, the kingfisher, can find home amongst the hustle and bustle of even our busiest city, London.The team also go behind the scenes with the Wild Alaska Live team, as they reveal how even life for the people of Alaska can be governed by the arrival of the Pacific salmon.