Britain's Big Wildlife Revival

Ellie Harrison discovers how much of our countryside has been transformed into a food factory, squeezing out our precious farmland wildlife - and how farmers are now bringing countryside creatures back from the brink by creating new places for them to live. She visits an organic farm and a scheme in Wiltshire where farmers are working together to recreate habitat on a huge scale.

Adam Henson takes a trip down memory lane to his childhood where hares were a common sight and finds out why they have declined so much; Steve Leonard investigates the charismatic barn owl; and Michaela Strachan takes a spooky walk in search of the greater horseshoe bat. Finally, Ellie discovers how the large blue butterfly returned from extinction in the UK - with a helping hand from us.