1/4 In the midst of winter, time lapses show a magical country shrouded in frost and mist. (R)
2/4 Spring arrives, marking the start of an epic race for life where timing is everything. (R)
3/4 Whilst the human population of Britain kicks back, summer is boom time for the animals. (R)
4/4 The fading sun brings a change to Britain - a time of storms and unpredictable weather. (R)
