Narrated by Happy Valley and Grantchester star James Norton, this beautiful three-part nature documentary reveals the extraordinary ways animals, plants and people have found to adapt to life in the legendary, but brutal, Wild West of America.

Highlights of tonight’s opener include the story of a 10-strong herd of mustangs, including a female and her cute four-week-old foal, on their quest to find water in the Nevada desert, and some lovely rare footage of notoriously camera-shy coyotes.

However, tonight’s episode is totally stolen by the courtship of two desert tortoises – can the male manage to woo his lady?