The fascinating migration of the stickleback is captured for the first time on film from the starting point in the North Sea through sea locks to their breeding grounds far upriver in a beaver pool Beavers build an ideal breeding ground for the stickleback but its also an expanding home to scores of new creatures including the ringnecked grass snake

Flood plains and polders are home to the elusive hare and an extremely rare butterfly the scarce large blue Entering the micro world of the insect we explore the intricate life cycle of the large blue and its remarkable relationship with ants In a unique scene deep in the ants nest the chrysalis breaks open allowing the butterfly to scramble to safety