Described by BBC Wildlife magazine as “one of the most remarkable conservations stories you will ever hear”, the story starts in 1979 when the young British scientist Fred Burton arrives on Grand Cayman and becomes intrigued in the Blue Iguana.

When, many years later, as Environmental Programmes director for the Cayman Islands National Trust, he discovers that less than 15 are likely to be alive in the wild – too few to breed, therefore making the Blue Iguana functionally extinct – and so the determined scientist takes action and spurs an international and notable team of dedicated helpers to follow suit.